Ha! Did you see the trailer for Guardians of the Galaxy 2? They just keep making them bigger and dumber.
honestly cgi only bothers the most pedantic of fucks. (though practical effects have an undeniable charm to them) how do you propose to do have that shit practically?
If the movies just become special effects reels like Avengers 2 and Dr Strange there will be no characters to enjoy.
yes, that is a problem. for far more movies than just the superhero genre unfortunately. let's call it "Avatar Syndrome".