Oh yay, I thought this might be the same little pest. They are so very small it’s hard to capture them in a photo. As I understand they are actually beneficial as they eat decaying material and harmless to plants even though a little freaky when you find them. Curious as to why they are climbing your tree unless it is related to the recent pruning. I would think inorganic soil would be a deterrent for these guys, possibly there is a bit of moss they collect in/under in your pot. Amazing tree you have! I usually just repotted or re mounted my orchids and they were gone, you can flush them away with water. Miticides would probably work though I’ve never used them, just flushed them away with water..outside.
For another bizarre little jewel to find inhabiting your plants, harmless as well, do a search for Pseudoscorpion! I had one in a terrarium for most of a year. Now that little one really freaked me out!
Good luck with the repot