If you defer to Disney, then why don't you accept their wisdom in acquiring Marvel?
Marvel heroes, to my knowledge, are only seen in Universal Studios, and quite frankly, they aren't represented very well. Outside of the Spider-Man ride, I find it to be a crap fest on Marvel Island. They are really showcasing the 90's visions of the characters and there are some more family oriented, yet still "cool" interpretations that could really work well at WDW. Frankly, I think the folks who are so against Marvel in the parks (aside for the hordes of legal experts who just like to ________ on our tea party) are folks who have a very specific interpretation of what Marvel is and what the possibilities would be. Not considering things like Dr. Strange, The Marvel Super Hero Squad, and all sorts of other angles on and characters that could be presented.