Because people don't actually know how disney even works and assumes they make and fund only kiddie movies.
What, 20,000 leagues under the sea? Black Cauldron? TRON? The dub of Princess Mononoke? The Black Hole? I dunno what you're talking about. (Seriously, would some of those Ghibli dubs have even been made if it weren't for Disney funding them?)
Or also because Disney does corporate behaviours they don't like. Lemme ask you this: Name one corporation that does not engage in any dickery simply to gain money. Oh, and you lose if you say Google or Valve. You just know that if any other company did the stuff they do, people would be screaming "GOUGING!" and "MILKING!" but nope, they did a different approach: Build a loyal fanbase who'll defend any choice you make and then start acting like a corporation so they actually defend your fuck-ups and dickery.
watch marvel super hero squad then watch the avengers/ fantastic4/ ironman/ xmem, or the wolverine then you'll know why disney don't give the marvel universe the respect it deserves marvel is just a way to attract younger males to disney i.e. more money sure it does some things good it spawned pixar, world together with studio ghibli rather well on multiple occasions and some other things other than that...............disney is the defileler
Actualy Superhero Squad premiere was before Disney acquired it and let's admit it DC may be terrible with action movies compared to Marvel (Marvel has a lot successful characters in movies and DC just has Batman, because GL sucked), but when comes to animation, Marvel usually sucks (there's some exceptions but knowing that 75% of animated DC stuff is really neat, those exception are a few)