Did you know Uber drivers can be banned from picking up (and additionally dropping off) at airports? This can happen
It's been a big issue where drivers were cherry picking their rides from the airport. They'd continue to cancel the rides if it's a shared ride or they realize it being too short (for those of you who can see) etc. etc. Canceling doesn't make you leave the queue, so drivers started getting used to it.
Well, here you have it. a Permanent block.