Here's a Reuters article on this: https://www.reuters.com/article/us-uber-court/uber-dealt-blo...
I'm not sure "major setback" applies. They lost a court case, but according to Uber they're already complying with transportation services regulations anyway. If that's accurate it seems like the ruling is a formality in some sense, and the Reuters title is more accurate. It is a blow, but in the sense that they lost the case, not that it substantially affects how they operate.