With the exception of Widow and hawkeye everyone who is operating at strictly superhuman levels was superhuman thx to SS serum, Tech, SS serum + Gamma, or being a member of a species that is superhuman by default. The two non superhumans didn't have Jobber Aura like comicbook and toon Bats gets. What's jobber aura? It's when despite severe, severe disadvantages the character almost always wins or hold their own. Hell 616 Cap often gets Jobber Aura too but there was none of that in either of his Movie Appearances he was clearly outmatched by a non serious loki but operated somewhere above nolan verse batman I think Nolan verse batman can work in a wider JL world just leave out the jobber aura and don't have him soloing those he has no business soloing.