Seeing how chute or goin down with your aircraft is of no advantage in the consideration of receiving "half points" versus full points of the loss of their aircraft, There would be only 2 reasons to bail out in an FSO.
To provide intel reports on locations size and strengths, and to divert the ack fire. For some reason, the ack seems to see the chutes as a higher threat than the aircraft and stays focused on them instead of the aircraft. I have no clue as to how the AI chooses its targets.
But whether this was done intentional or just by accident, don't know.... but you can bet that now it is out in the open, it will be used to that affect more in the future by some that never realized of the great affect it may have on their strike initiative.