No airline wants passengers up and about while on the tarmac. Once they get clearance to move they need to get going almost immediately and can't move if passen

No airline wants passengers up and about while on the tarmac. Once they get clearance to move they need to get going almost immediately and can't move if passengers aren't seated. That doesn't excuse the flight crew for not handing out water however. That's just a cheap airline being stingier than necessary.