I think some people who grew up reading the comics have a sort of blind spot for the lack of diversity in many of these stories. It's easier to notice these problems once these properties start being adapted for the big and small screens though.
Take the casting of a Spider-Man movie, for instance: Spider-Man's got to be Peter Parker (
white dude), right? And we need to have Uncle Ben (
white dude) and Aunt May (
white lady). But you can't have Spider-Man and not have Norman Osborne (
white dude)! And what's Norman Osborne without James Franco (
white dude)? If it's set during his high-school years, Peter has to be able to turn the tables on that bully, Flash Gordon (
white dude). And let's not forget his love interest(s), Mary Jane Watson and/or Gwen Stacy (
white ladies)!
Which is probably the reason why those Sam Raimi movies (that I love) basically looked like this:
There's been a problem with diversity and representation in comic books that writers have clearly been trying to address for years, I don't see why we should lose sight of that here.