The Simpsons pulling that episode from syndication will probably last as long as the time they pulled the LT Smash and NYC episodes after 9/11 (actually probably shorter, that might have lasted a year or so.) Same with the radio songs in certain countries.

In general, it's probably for the best if we're consuming more art that isn't made by disgusting people and for too long people have been able to get away with anything because they're a "brilliant artist."

I think eventually, people will be able to look at everything in totality. You can still watch and study the films of Alfred Hitchcock, Roman Polanski or Woody Allen, just like most film schools still show Birth of a Nation (the one from the 1900's) because of it's influence on early film-making techniques, while also noting that it's baseless Klan propaganda. It would be tough to study the history of film without seeing something horrible or a movie by someone horrible, because we live in a horrible country in a horrible world! Doesn't erase their positive artistic contributions, but they should be put in context.

Same goes for any other artistic medium.

If anything, we should use this as an opportunity to expand the canon. There's plenty of people who made movies in the 70's that weren't rapists or R&B singers from the 90's that didn't sexually exploit children, put people on to them.

And finally, there's always going to be a recency bias. Whenever something is more recent, whether it's the behavior or just the discourse around it (see the big Twitter dustup a few weeks ago because John Wayne's infamous white supremacist Playboy interview from the 70's was getting shared,) people are going to be more sensitive.