Just in case it isn't clear, Uber is just the easy whipping boy because of bad PR -- the legal hurdles Uber is going through will crush Lyft just as quickly (probably faster because they have a smaller legal team).
Taxi unions aren't going to say "oh, but Lyft doesn't have as much sexual harassment in the workplace, we'll let them slide."
This is a reactionary kick by a protected industry, but if the legal framework ends up crushing hail-to-ride companies, those laws aren't going anywhere for a long, long time.
The change will only happen if it's not-explicitly-illegal and people are able to use the service to see the value; if one of those stops, we're going back to unavailable, dirty, unsafe, cabs with perpetually broken credit card readers.