I disagree. I think it really understood this market for a while (when Tower of Terror and Alien Encounter were built; we can even say Mission: Space). The problem was that the other markets, the kids and their parents, freaked out about this new direction. Because of all the complaints about Alien Encounter, there was the need to stay true to the roots of being a family place.
We can argue about the whole technology thing for a very long. While I think SpiderMan is one of the most spectacular rides out there, we have to also look at the technology that Disney has created during this time. We can say that Universal has SpiderMan and the new Potter ride, but that is really only two innovations.
During this span of when SpiderMan was being created to now, Disney has had, while not revolutionary, technology-driven attractions including Test Track, Soarin', Everest, Turtle Talk/Laugh Floor, and now Toy Story Mania, not to mention a slew of attractions in Tokyo. We can also count the great animatronics that have graced our presence in the past years too. Look at Lucky, the Yeti, and the animals in Dinosaur.
Disney, while not creating the greatest technological ride, has still been the front runner when it comes to technology. Disney is at the beginning of a revolution that is going to increase the thrilling and interactive nature of theme parks. In a few years, Universal might have SpiderMan and Harry Potter, but Disney will have gone in a totally different direction that will be the future of theme parks.