I think it’s fine as long as the performer asks for consent and the participants are aware of the scope of possibilities within the performance.
That being said I’ve never been hypnotized even though I have participated in more than one occasion. In one ”group experiment” from a practitioner the group exhibited signs of being hypnotized while others didn’t. I’m of the mind that compliance comes from a willingness… be that from; group think, people pleasing, or openness to experience the situation. I’m sure there are other factors.
Had I not been in control of myself I may change my belief to it not being ethical to entertain thru such processes.
Either way, I’m not a fan of hypnosis for entertainment or other uses.