I have not tried this service, I think it might be a good thing that the "old" taxi-companies have to think about getting better at what they do.
But ...
All of you ignoring that it is a profession to be a taxi driver: should we now let anybody (without knowledge) build scyscrapers, or should we now let anybody (without knowledge) perform surgery? Imagine those apps! Emergency surgery and you can watch the "doc" (your neighbour, normally working as a clerk at Walmart) closing in on the map on your phone!
Cool!
If you like all those new possibilites then you will LOVE this!
What I want to say is: there is a reason some things are regulated and you need some experience and sometimes education. Some developments are not needed! We dont need everything "just because we can".