I had crown damage in one of my Phals, it then produced a basal Kieki which is now almost as big as the mother plant.
The mother plant has now started growing new leaves from the damaged crown and looks none the worse for the damage.
I now have a double plant that I intend to leave as it is as when (if) it flowers I should get spikes from both plants
I would let nature take over on this one as one can never tell what will happen with a Phal or any orchid come to that.