Yes, the paste in that article KeikiGrow Plus is what I have. I doubt that Rootone powder has the same hormones in it, but it still may work.
The worst that can happen is you might lose the stem. The plant will grow another.
The important factor is that these orchids are epiphytes, so do not root and grow like 'regular' terrestrial plants. They take a lot, if not most of their nutrients from the air, and make their babies without any help, hanging out there in the air, too. When my Phals put out keikis, they produce leaves first, then roots. Again, I'm very worried about the wrapping with moss in view of this.
