Well, on Regional aircraft you also need to remember that the 'jack' is just a bottle jack and only lifts up one tire, so it safe to be around and on-board the aircraft.
I've had to do it a few times while working Line Maintenance in BOS
. If I would have asked them to de-board the aircraft I would then open up several problems.........
1).. You can change a tire in just a few minutes, so its a much less hassle to leave them onboard.
2)..The passengers would get pissed off if you ask them to get off.
3).. It would add a TON of time to the situation as, once back in the gate area they would need to be RE
-boarded and all the hassles that go along with that.
4).. If they do go back inside, I'll bet you 100% Operation will MX
-CX the flight.
"It's not the size of the dog in the fight, but the size of the fight in the dog"