I just think that creators and their creations deserve a degree of respect
Just as an example, it would be totally disrespectful if every female character that was adapted to the big screen was clad in bikinis or leotards or whatever they wore in the old comics, because it would look terribly sexist and they'd be accused of objectifying these women.
So obviously, there are many reasons why the old ways can't be adapted to the movies in the 2020s in the same ways that they existed in comic books in the 1960s.