One of those exploits, and yea it is an exploit imo, that has been around forever. I couldn't think of a good way to fix it other than the game not allowing buffs to bail if an enemy was in icon range or further, at least with the magic three taps. Really, I think it'd be nice to apply that to all aircraft, not just buffs. That way people who don't want an hour flight or more back to base can still get out of their buffs but can't if they are engaged.
Then again, people have been doing it forever, so I highly doubt any official change is going to happen. Just another frustration that you need to deal with in the MA, though it really is a shoddy tactic considering the lasers on buffs. In the end it's their $15 a month and HTC allowing it to continue I guess. I can think of worse things someone could do, but it is not

at all.