There has also been a shift in management in that time frame as well so each person's "vision" for the future has shaped the priorities.
I just keep thinking with all the things I've heard rumors about "another trackless dark ride/boat/whatever" instead of creating something new an unique. It seems like the current MO (probably to save time and money) is take something that exists and just change the IP. Build one system, trackless dark ride as an example, and it's Mickey & Minnie's, Rise of the Resistance, and Zootopia. Same rides, same (or at least very similar) layouts, just change the scenery and characters. At least try something new. And with Disney it still takes too long and costs too much to build a clone of the thing they already designed and engineered once.