THIS!
I think you've hit the nail on the head.
The land had potential before Dino-Rama. Not only did Dino-Rama destroy the land's aesthetic as you described, but it messed up the crowd flow so that a big percentage of guests now completely miss the land's actual main attraction.
Not only should they remove Dino-Rama in its entirety, but they should fix the pathways so that guests are actually funneled to the land's true centerpiece. The percentage of AK guests who are never aware of Dinosaur's existence is ridiculous. Fixing that problem would almost be like adding a new e-ticket to the park.
The truth is, even from the beginning, the placement of Dinosaur was one of the weirdest design decisions that Disney had ever made in a theme park. It should have been the land's "weenie," just like the EE mountain is for Asia, the tree in front of KS is for Africa, etc. But at least improving the guest flow would make more people aware that it exists...