Marvel/Pixar movie idea cancelled

Pixar and Marvel were planing on making a movie together about 2 months ago. Marvel wanted to team up with Pixar and make a movie kinda like The Incredibles 2. Brad Bird, director of The Incredibles, was in for the idea, but John Lassaster, director of Toy Story, wasn't so sure.
  Just today John Lassaster said no to the movie plot. He said to the Marvel company-
"Disney has been great. Bob Iger is phenomenal. I’m Chief Creative Officer of Disney Animation as well, and with Pixar it’s like, “Keep doing what you’re doing, guys.” It’s a filmmaker-driven studio. All of the ideas come from the filmmakers themselves. Working with the filmmakers on ideas.
IGN: So there probably wouldn’t be any kind of chance of seeing that kind of team-up then?
No, not at Pixar. We have The Incredibles, so we’ve done superheroes here ourselves and so we have that kind of history with Brad Bird doing The Incredibles".
  I'm actually glad they won't do a movie together. Besides Disney already bought Marvel, I don't understand why Marvel needs Pixar.