Did you see the ones where whiplash and Crimson Dynamo were the same person, Justin Hammer was a young man, Aldrich Killian was a young man who didn't kill himself, Bucky Barnes fell out of a train and wasn't blown up, The Red Skull got a super soldier serum dose, Heimdall was black, and Malekith, Tony Stark and many others did not act anything like their comic book counterparts? (Granted, movie Tony Starl is at least way more entertaining than comic book Tony Stark)
All of this Hyperbole for a guy who is the same character at a different point in his career who's age should not even factor into how well he does his job (or did).