[Suicide Junkie]

Regeneration is the entire point of Organic Armor, but if you happen to lose all your organic armor it won't regenerate.

And the destroyed icon dosen't nessesarily mean "vaporized", but possibly just "inoperable", or "ineffective due to damage". If all the keyBoards on your bridge melt down from a power surge of some sort, the bridge becomes useless. But it could be "repaired" in 90 seconds by joe schmoe running around with a box of new keyBoards.

In the case of this armor, view the damaged armor as having a hole punched through it by your laser beams or whatnot. Having holes in your armor means it is "ineffective due to damage". However, since this armor is alive, in only seconds the other OA bits can crawl over and fill in that hole, restoring the component to usefulness.