If everything goes precisely and spectacularly right with this plan, what will the result be?
Wiley.
Well, one might find out how often this occurs. I haven't seen it very often, but, then, my flying time has been way down over the last few years, so there may be more instances, now. I think it would be interesting to see if it is 50 or a hundred guys doing it, or just 3 or 4 doing it 25 times. Which kinda goes back to what the OP is looking for.
The ones that bail just to deny a chaser the opportunity to kill them is despicable.. IMHO. And if taunting ensues to that effect, that's even worse. Illegal? no.. Shameful and Shame-able, ..yes.
There will certainly be instances where it is justifiable.. A sudden burst of wife-ack, visiting neighbors, emergency family time with little ones.. etc. And I don't think anybody would fault the alleged BnB'er for that.
If, however, we see the same person a dozen times in a month with the same excuse.. one might get suspicious.
I would hope that those who chose to post such films use a little prudence as to the likelihood the bomber driver knew they were being pursued ( The only enemy being on the ground and reporting a guy who bailed from 20k over their head wouldn't be considered a BnB. )
Now.. if there's no enemy around you and you bail, you wont be getting filmed, anyway.
I know that HTC was looking at even, possibly, reversing damage done by bombers if they bailed within x mins after their drop. I don't think they accounted for being killed by an enemy within that timeframe, tho. And this was a few years ago, so it must have gotten some attention. Maybe it wasn't really that big of an issue back then, after they observed the actual frequency. It may still not be that big of an issue. That could be supported/denied by such films.