Bella's not going to be a competitive figure skater, but with sufficiently souped up boots she'll try a lot of the maneuvers when she's taking a couple hours to glide around.
And no friction from having the wrong kind of curiosity or anything?
That seems pretty reasonable except that it does mean anybody under a mind-altering oath will presumably avoid therapists.
Well, if there were more subtle artists she'd suggest having two kinds of therapist so if someone wanted help but couldn't allow oath tampering they could get as much help as they could accept rather than having to try to conceal the existence of the oath. But it's just her.
She's kind of had a limited and not completely anonymous patient pool, which means there's an information problem.
If someone picks up the skillset of therapy without the subtle arts part (due to a demand/supply mismatch) they would have an advantage compared to her in doing non-oath-tampering therapy, or rather a disadvantage in the opposite direction, so she will be the oath-tampering kind. If she ever meets any orcs those oaths are getting tampered with.