OK, I'm going to be on the outside looking in for this opinion - this excites me quite a bit. Not necessarily the permanent additions to the land's gateway, but the concept of Donald exploring his dinosaur heritage is a perfect fit for the edutainment style of park that DAK originally intended to be. It's actually likely to be a bit more quality stealth science content than I think Dinosaur is able to deliver. I love the evolution silhouettes above the Welcome Center also reinforcing the message, and the fact that the dinosaur he's hugging is feathered as he should be.
I will caveat this with the fact that one of my favorite memories from my Honeymoon was a M&G with Donald on the Cretaceous Trail, with him in pith helmet and safari shirt. So I have a little bias in emotionally seeing Donald as a decent fit for the area.
But seriously, in a park that's about animals and science, having a kid-friendly hat-tip to teaching some basic evolutionary science facts is exciting to me as a professional science (among other things) interpreter and educator.