Another part of it is that trying to make their movies like Marvel would be taking on Marvel at their own game. They've perfected the art of the fun blockbuster superhero movie, and have been nailing it for almost a decade now. If DC took Batman and rebooted it to be more like the Animated Series... that would be pretty awesome. But you're also then just going to be in Marvel's shadow picking up their scraps.

Now, you could argue that they're already seen that way (at least in terms of movies) and I would agree, but at least they're trying to do it in their own way. I've always had a problem with video games that try to capitalise on the success of Call of Duty by copying Call of Duty. There's already a game for people who enjoy Call of Duty - it's called Call of Duty. It's the same here - if you want to see a Marvel style film, you'll go see a Marvel film, not somebody who is just copying them.