Why?
Because there's no reason for it and it happens across all three movies. I know *why* he does it (for dramatic effect) but that reason is greatly diminished when it's constantly used.
See, your original complaint was just that the character had dialogue in the first place. You said nothing about the quality of the dialogue, which I have to say I disagree with you on about it being cringe-worthy. I actually thought it was just fine, and actually made the character that much creepier and threatening.
Laserbeak shouldn't talk, IMO. However, if he *has* to talk, can it be something that doesn't make me roll my eyes? "Where's mommy?"
See, that is nitpicking! Last time I checked, this was combat! And why should anything he says detract from the fact that he's still killing the mess outta Decepticons, which you have no problem with! Your logic is based on the idea that you can kill as many enemies as you want, just don't talk about it?
Nitpicking? It's nitpicking to point out that Prime's character was completely abandoned in favor of some psychopath? Nitpicking is the favorite cry of the apologists. Sometimes bad movies happen. Sometimes characters are portrayed poorly. That is the case with this movie. Like I said to someone else, what happened in DOTM is essentially the same as Batman ripping Ra's Al Ghul's throat out at the end of BB instead of letting him die in the crash. It would be completely out of character. The novelization had Prime letting Megatron and all of the Decepticons go back to Cybertron, right? THAT is something OP would do.
No, Devastator got taken out by a railgun shot from an aircraft carrier. The twins shot at Devastator, distracting him for a brief moment, and that whole exchange ended in one twin shooting the other one in the face! At least Brains served as an intelligence component in one scene, and could actually provide the humans with some degree of useful information. Not to mention even Wheelie in the second film was the one who knew anything about the language of the Primes and seekers, and led Sam and the others to Jetfire in the first place.
You're right about Devastator. Sorry for the misappropriation.