I've taken Uber from the airport, so I don't really see what the story is here. Is it that they're going the "legit" way and paying the fees? As a consumer, I don't honestly care all that much.
Last time I tried to grab an Uber from the airport (around 4 weeks ago) it no longer worked. You could see rides in the area but if you tried to drop a pin anywhere on airport property it wouldn't let you.
Agreed - you have been able to grab Lyft & Uber from SFO airport easily for a long time. I guess the difference here is they have a license from the airport.