From a thread on TFW that I started, discussing the "problems", some of which are genuine.
Previous robot encounters such as the publicly broadcast Transformers battle and Grimlock stomping through the countryside are briefly hand-waved away as the work of the now-defunct Machination. Yet Air Force representatives also state that they thought the giant robots were a hoax, which makes little sense considering that a news station filmed them and the Air Force has seen them fighting the Reapers. Worse, the people of New York react to the Constructicons by thinking they're part of a movie being filmed, rather than going "Oh no, the Machination is back!"...
First off, just because a segment of the military is aware of the existence of the Transformers doesn't mean they know anything in great detail about them. Some aerial news footage and a view from an aerial jet flyby aren't a lot of information. No one saw anything up close and personal in Devastation, so while the knowledge is out there, there's not much to go on. It's conceivable that an aggressive attempt to contain the information like the one that the FBI agent mentions could be successful in the very structured and compartmentalized world of the military.
To narrow in on the street scene and the 'movie' comment, the initial exchange only lasts a minute before the Cons start shooting. The humans are surprised, and these aren't the robots from the news footage, even assuming the individuals on the street saw that footage, which they may or may not have.
In Stormbringer, Jetfire said Cybertron was healing itself, but that it would take hundreds of years. Apparently what he meant was one year, since the Autobots (and a swarm of Insectithings) have been hanging out on Cybertron without special shielding, and haven't died yet. Much later in issue 7, the explanation given was that the storms coincidentally died down just as the Autobots arrived on Cybertron, and that living on the planet now merely causes them pain, but evidently not enough pain for them to complain about or even mention in the six previous issues, or anytime afterward. Okay then.
Jetfire was wrong.
Ok yeah, it's a genuine discrepancy between Furman's work and AHM. There's a little dialogue to try and smooth it over, but it could have been handled better. To be fair, there is a mention in issue 4, the first issue to focus at length on the Autobots, that signals won't carry in the atmosphere. And Jazz doesn't say that the storms have stopped, just that they aren't as bad.
The Swarm are wild mutant things anyway. If the environment doesn't kill the Autobots, it's not likely to kill them. Not that they'd complain.
And, to add to my answer of the time, the Ironhide mini-series took care of this plot hole.
The Great War is apparently about the Matrix of Leadership though it had no bearing on Megatron's rise to power in Megatron Origin, and nobody ever mentioned it as a motivation (or barely at all) until #6 of All Hail.
Agreed... this did come out of nowhere.
Energon was once considered a rarity, believed to exist only on Cybertron, with Ore-13/Ultra Energon being the closest thing found, and Cybertronians instead had to resort to artificial derivatives or "foul local brews", yet now Kup is able to quickly acquire a ship full of the stuff.
He does? I recall he had a small amount, nowhere near enough to get his ship up and running again. Maybe I need to go back and re-read, but I don't remember anything about a ship full of energon.
But... both Autobots and Decepticons have been on Earth for a full year since Devastation. Plenty of time for both sides to mine some Ore-13 and refine it if needed.
Bombshell was created a year ago, though featured as a plot point in Spotlight: Blaster's flashback sequences. Kickback also had a minor cameo in Megatron Origin. (Much like Blaster and Bluster, this must be... Sitback! Evidently his cousin.)
That's the problem when things are made up as they go along.
Soundwave's speech patterns have returned to the cartoon-inspired pattern from Megatron Origin, after a stint of fluent internal monologue in his Spotlight, as well as in Maximum Dinobots.
The real world explanation is of course a return to characters who act much as they did in the old cartoon. It's an appeal to nostalgia. Storywise, it doesn't fit with what we read before. There could be a reason for it, some injury or something, but if so it ought to have been addressed. Had I written the story, I'd have kept Soundwave's speech patterns normal. The same for Omega Supreme.
During Furman's run, Starscream, the Seekers and the Triple Changers were little more than an Infiltration unit, with plenty of guys much higher-up in the command structure (Banzaitron being the head of the Secret Police and everything, for one), but now it seems Megatron has little command structure beyond the aforementioned Seekers and Triple Changers, along with a few other characters from seasons one and two of the original cartoon.
At the end of Devastation, Megatron had on Earth with him Starscream, Thundercracker, Skywarp, Astrotrain and Blitzwing. Soundwave was on Earth, and so were Ratbat and Ravage. Most of the major s1 and s2 characters from the cartoon were already in place when Furman was writing. Admittedly, AHM sets the command structure up as it was in the cartoon rather than as Furman had written it, but many of the characters were already in place.
Verity Carlo and Jimmy Pink are nowhere to be seen.
This is not a discrepancy. They simply don't appear. While their presence is missed, with no Autobots on Earth for them to interact with, I'm not sure where they would have fit in the plot.
In a slightly jarring move, issue 7 of All Hail began chucking in and mentioning parts of previous IDW continuity that the comic had not acknowledged for a full half of its run. This included the Sunstreaker plot from Maximum Dinobots (thus blowing part of the ending for that miniseries), which was brought up in issue 7 as a lead-in for him being revealed as the mysterious traitor in issue 8... after having no focus in the previous six issues of All Hail.
I'm not quite sure where this one is going. The fact that prior continuity is overtly scarce in the first half of the story is meaningless. AHM is a 12 issue series, and continuity plays an important part in it.