Even when I can imagine some situations where it could be great it won't be other thing than a niche play buy it was also fun to think about.
Profundity with Bail deploy the little ship from his bellybutton and move Bail into it. Surprise! the little ship will activate first.
It could be interesting if you're second player and Profundity need a bit help to escape from a sure death. Let's say it gets blocked and cannot kill the ISD in the path even shooting first, but can stand at least one enemy activation. This would allow you to deploy your little ship and activate it first to soft the ISD (saving also your little ship as it won't stand one shot if Profundity would be the first). Profundity tank the shot and then activates to kill the ISD and flee away!
Niche I know but would be so fun to do it. Of course it came to my mind thinking on Pryce who would be insanely good to be able to do that.