Not sure I 100% agree with that assessment. I mean, Disney is basically in the process of building DHS's version of AK's Dinosaur area, a cheap addition (at least in look based on everything we have seen) that's already getting cut back, that's going in for the sake of capacity .*Hi Toy Story Land!*
So if they truly had learned and wanted that improvement, we would see it mirrored in Toy Story Land.
Further more, after the financial disasters that are Shanghai and Avatar, and with so much going into SWL on both coasts as well as the recently announced additions to DisneySea, I see Disney scaling back on big 'land' additions and renovations in favor of single attractions and smaller area refurbs... Unless they truly feel they need to spend the money to keep up with full speed freight train that is Universal/Comcast at the moment.