@Genni Removal of K.O status should be a separate skill. Unless specifically stated that it was removed, K.O will persist.
No problem, that was my intent when I first came up with the Skill so it fits to the plan.
The way I see it, if Nightingale used
'All Better Now' to revive a teammate from KO then they still wouldn't recover any health and so would immediately drop back into a KO state again, making the Energy she'd spent trying to do it a total waste.
I'll come up with something like '
Resuscitate: Cost X; Revive one KO'd ally and restore X Health to them.' for a later upgrade to allow the recovery of fallen teammates instead.