You people take shit so seriously, he's kidding around. All of his fans are those of Batman so of course he'll joke around about the Avengers vs TDKR debacle. Get a fuckin grip on laugh and laugh once in a while.
Matthew Modine has a strong opinion about a film he's in made in a way he prefers.
Why is this a bad thing? Should he just be quiet and say: "I think Avengers is good and TDKR will be good"
The man has an opinion and has had the chance to work with Nolan and is privy to contents of the story that we are not. If those facts lead him to the conclusion that TDKR is going to trump Avengers in every way, I'd be excited because Avengers was good. So for a movie to be /That/ much better than Avengers that's going to blow me away.
Don't fall into the Political Correctness Hype. It's DC v. Marvel. It's Modine's subjective opinion about film making vs. People's needs to not have the thing they like so much talked badly about at all.