Nice rescue Ed.
I hope the same thing is starting on my rootless Chui Hua. Currently in a mix of live sphag (got mine off Amazon, Migrant, its alive but only just!) and some (more alive) moss from the garden, plus a small amount of bark/pellets. Like all my plants, I've got it over a humidity tray, which is over a vivarium heat mat. It generates great humidity inside the pots, which has so far promoted lots of new root growth on the other plants, so I'm hoping for the same. I dont know if it will have any effect, but I also painted a little rooting solution on the plant base before potting and mixed a tiny bit with pure water when giving it a first wetting. Hope to have some similar good news pics down the line....