Sorry to say, but I was not a big fan of this one.
First of all, and I know I'm in the minority here, but the Grimlock/Scorponok matter just doesn't personally interest me here. While I liked other elements of what was going on at the same time in the old run (Fortress Max was a favorite), I think I'm in the 1% that just never really cared to read about Grimlock.
Beyond that, I didn't like the vaporizing thing. First of all, if you could vaporize Transformers like Megatron from orbit... um... why wouldn't you have employed that previously? More significantly, Transformers in Marvel seemed to almost always be getting repaired, no matter the extent of the damage (I know I'm exaggerating here, but not much... kind of if you didn't get melted into a puddle of metal, there was a chance), so killing Springer and melting all of those Autobots and Decepticons seemed... hasty.
Why wouldn't, after all of the emotive dialog last issue, Prime put Megatron in the mass grave? Instead, Cosmos plays the crane grabber game with him?
I also really did not like the idea of the Transformer CNA. First of all, the key to the CNA is LITERALLY SHAPED LIKE A KEY? Second of all, it is in their CNA whether they will be Autobots or Decepticons? So, no one should ever be able to change sides? Your mind has nothing to do with it? So why bother trying to talk Megatron or anyone into a different philosophy?
Didn't Furman or another writer do something like this during the Dreamwave era, with Autobots and Decepticons picking new protoforms to be Autobots or Decepticons, as though it was part of their core programming, and not a reasoned choice?