Without some central decision making, you'd risk things such as two similar games going into development with the same license which are similar enough to cannibalise sales.
Cannibalizing sales from similar titles is bad for a publisher, but not for the license holder. The license holder gets paid no matter how many similar games get made. And the competition between similar games getting made keeps the scene competitive, and drives the different developers and publishers to try to make their games better in order to be competitive.
I get the whole "laziness" angle. I just don't think that its what's best for the player, the purchaser, or the IP franchise as a whole.
That was the preamble about recognizing Disney for what it is.
Being a licensing company doesn't necessarily mean being a bad steward of the IP property you are farming out. Lucas Arts themselves farmed out the Star Wars IP over the years, and actually got a few really good titles out of this approach. (Rogue Leader and Rogue Squadron were great) Disney may just be a big licensing farm, but that doesn't mean they have to be a BAD licensing farm. But this exclusive deal with EA strikes me as a mistake.