IM2 is boring
IM3 is offensively bad
cap has gotten better every movie, IM has gotten worse
IM1 was 8 years ago, marvel needs to let it go
Your problem here is that Cap movies have gotten better (there's only been 2 so it's not some long track record of improvement) but Cap has not become a bigger star for it
Iron Man surprisingly has become bigger. His showing in Avengers completely had that pay off in IM3.
There's nothing to let go. Iron Man has a proven track record over 3 solo movies and making him the main guy in Avengers. They fell back on that in AOU a bit and got what they got.
Just from a success standpoint, they have no reason to think it's not working. Nothing is pointing to them setting Cap as the next figurehead.
That'd only change if Civil War does 2 billi.
It's probably why the last 2 IM flicks had more improvising and ad libbing. The opinions of a few and story quality haven't affected the bottom line. Only change going on now is Feige introducing these new character they want to establish.
So yeah I'm not putting stock in IM3 being offensively bad looking at the actual worst comic book movies out there
Not buying it.