Phalaenopsis with dry crown

[Smirre]

Hello orchid growers,
I'm completely new to this forum and sadly have to start my membership posting on a problem with one of my phalaenopsis complex hybrids.
I bought this little phal in a garden center a few weeks ago because it is peloric. It didn't have a lot of healthy roots, only two which are more or less green and sturdy. I repotted it into clay pebbles and put a little sphagnum on the top to better keep the moisture and encourage root growth. Now, unfortunately, yesterday when I was watering my other plants I sort of bumped into it a little, and one of its leaves just snapped. When I checked to see what had happened, the other leaf on the same side came off, too, although I barely touched it. There is no crown/stem rot or anything that looks like a bacterial infection. I am very careful with the other two leaves now, but it looks like the top leaf is going to come off as well, because the crown seems to have dried up completely over night.
I have been growing phals for five years now, but I've never come across something like this. Do you think I should keep the flower spike in case the plant wants to produce a keiki from it? Or should I cut it and help the orchid direct its energy towards growing new roots and leaves? Will it even be able to grow a new leaf from this dried up crown?





I hope you can see the photos, not sure if I inserted the links correctly.

Thanks for your help and suggestions!