However, it seems even they are not above criticism, as some unnamed people, likely Marvel execs, thought the pair were insane for keeping Captain America out of the move for nearly its entire runtime.
The writers don’t reveal exactly where Steve Rogers apparently was during the entire run of the movie, beyond saying he was “underground.”
Generally, Stephen McFeely and Christopher Markus are heralded as some of the strongest people involved in the Marvel Cinematic Universe, being responsible for the two previous Captain America movies that are very well regarded.
Perhaps the plan was to reveal that in Avengers 4.