I started renting cars for WDW visits about a decade ago, just to avoid most of WDW's internal transportation system. I just can't deal with the crowds, the inefficiency, the sloppy monorail and boat CM's, the crazy and/or annoying bus drivers, nor can I deal with the smells and stickiness of enclosed WDW monorail and bus cabins.
I would be very wary of a Disney operated Uber system, because it would just devolve into the sad state the monorails and buses currently are in. With the real Uber, which I've been using more and more lately here at home, you have an independent contractor who keeps their vehicle clean and tidy. It's sad, but Disney can't be trusted to do that any more.
Take one ride on a WDW bus and one ride on a WDW monorail for proof of all that. And if you really want a stick in the eye, go take a ride on Tokyo Disneyland's monorail system to see how WDW used to run their system in the 20th century.
Inbetween stations, Tokyo CM's walk through the trains cleaning little fingerprint smudges off of windows and sweeping floors.
At each station the monorail pilot steps out and salutes boarding passengers. Tokyo's monorail pilot CM's wear immaculately tailored white suits, with starched hats and white gloves. And yes, Tokyo has a very hot and humid climate with summers much like Orlando. The Tokyo CM's look like this year round.
The point???... It's entirely possible for Disney to run a hyper-efficient, hyper-clean, hyper-courteous transportation system with CM's who are solely focused on the passenger experience as they move tens of thousands of passengers per day. WDW's management team simply chooses not to do that year after year, decade after decade, and instead is now fiddling around with Uber surveys. That's total failure on WDW management's part.
