Well, CR90's would die, they need a token and a dial unless you are running Redemption. Which might worm it's say into the swarm.
He say "treated as if not destroyed. . . " if you don't have max damage by the status phase your ship lives. Until they FAQ it though at Mon Mothma points he should be doing things that way.
You didnt quote it in full. It says ""When a friendly ship or friendly unique squadron is destroyed, it remains in the play area and is treated as if it was not destroyed until the end of the Status Phase."
That implies that it is still treated as destroyed after that point, but isnt very clear. I just checked out the destruction rules too, not much help there.
I could see it going either way tbh. It will certainly have an enormous impact on how good Rieekan is.