Is it possible the training is not as necessary as presumed?
Yes, but if so then that's something for the localities (through their democratic process) to decide. Not you or I. And it's certainly not for Uber to decide, on its own, what's "best" for that given locality - and to continue operating despite local regulations it happens not to like.
As it has unfortunately has not only had a habit of doing in the past - but which it has done as a deep and abiding expression of its core values as an organization.