Laws aren't perfect. We would never have progress if we never challenged them (in reasonable contexts, not committing outright crimes). This is clearly a case where millions of people are benefiting from a modern approach and it makes sense to review the laws to see if they still work in the current era/culture/society.
Hardly. The only way you can possibly launch something like Uber is to adopt the "Act first, apologize later" model.
Companies like Uber face problems most of us can't even imagine, such as regulatory capture by the incumbent taxi industry. Yes, Uber plays dirty, but to some extent I think they have to, because it's a dirty game.