Counterpoint: that rock work would probably do a better job of blocking out Anaheim than IC does.
I have no attachment to anything in Pixar Pier, really.
I've seen World of Color five times in four different iterations. It's basically fine each time but isn't good enough for the time you invest to see it. The way they originally build the park also stops the park from ever doing a show on the scale of, say, the Harbor shows they used to do at TDS that were incredible.
The parade route and WOC arena are apparently too close together, so they'll never be able to run WOC and a parade at the same time. Another design fail.
The layering and kinetic energy is largely because of the wheel and IC, two attractions that aren't good enough for me to much care if they go to Yesterland (not really the measure of what makes good layering or kinetic energy, I understand, but still).
Maybe my view of the area would be different if I had children, but if they leveled it all tomorrow, the only thing I would truly miss on any level would be the Paradise Garden Grill/Boardwalk Pizza & Pasta seating area.