Does the Battle Tree have version exclusivity?

Question

I was wondering if the special Battle Tree trainers have version exclusivity. I have Pokemon Sun and so far I've only been encountering Sina, Kiawe, Cynthia, Wally, Colress, Grimsley and Plumeria. Never Dexio, Guzma or Mallow and it's a shame because I wanted Guzma as a multi battle partner... Has anyone with Moon seen Sina/Kiawe/Plumeria in the Battle Tree yet?

Answer 1

No confirmed instances of version exclusivity are present within the Battle Tree.

Hope I helped. :)
Source, along with cross-referencing