Nah I can't agree. I didn't like "AOU" at all but:
1. First time the Avengers acknowledged the Infinity Stones.
2. First time Wakanda was referenced.
3. First appearance of Black Panther villain Klaw, which set up that movie.
4. First appearance of Vision, who obviously plays a key role in "Infinity War".
5. The events lead directly to "Civil War".
I'd say the main problem with "AOU" is it served too much of a purpose, plot-wise. They crammed so much shyt into the movie setting up the next Phase the movie itself suffered.
Fred.
Dont forget Ragnarok too.
They dedicated 5 whole minutes to setting up Ragnorok randomly at one point during the movie through Thor's water spirit dream bull shyt.
They used the movie to set up so much shyt they forgot to make Ultron have any sort of universal lasting impact by himself. Vision ended up being that which is very lame.