I find it weird that AA hasn't had an episode focusing on how Tony became Iron Man in this universe. All the other original Avengers have one, with the exception of Sam, who's shown getting his powers in the series. Thor too, I don't think we've had an episode properly explaining why he came to Earth either, I just notice it more with Tony because the show really likes its arc reactor angst, but hasn't shown us how Tony got it. Am I wrong about this?
You’re right, that is pretty strange! What I find even stranger is that AA!Tony, despite being the “heart” of the team (and arguably the series), is missing many pieces of his typical storyline: for example, both Pepper and Rhodey are nonexistent in this universe, and we hear next to nothing about Stark Industries, let alone Tony’s role as the head of the company. It’s as if his only function in the AA-verse is to be the leader of the Avengers. Odd, don’t you think?