I hate this attitude. Firstly the ride was already an IP so this change isn't an instance of the dreaded evil IP taking over a classic Disney original idea. Secondly, it's a damn business. Given the choice between something aesthetically nice but not that interesting to joe public and the inclusion of a character/IP the public love and that will be easily marketable of COURSE they're going to go with the one that more people will enjoy. It's honestly the most annoying takeThis has been a completely unrealistic dream of mine for ages.
Unfortunately it's all about the IPs and the ka-ching though.