Cynical is the accurate word. I have to assume you have never worked with hypnosis or been hypnotized? That's not a judgment, just an observation.
As someone who has worked quite a bit with hypnosis, in a variety of scenarios, I can say with confidence that this is exactly the kind of behavior I would expect from someone in this scenario. I've hypnotized people in loud bars with people walking all around them - it's not a problem if they are invested in having the experience and are able to hear you. I don't think there's 3 cameras. I think he purposely paced the scripting and such so the cameraman would be able to change positions to get the various close up shots and pans. I know a guy in Fresno who is video enthusiast who could film this on his phone, and another guy who has cobbled together a professional style shoulder rig who could also film this solo. I am sure there are decent gaps between the changing shots that we're not seeing.
Her body language and manner of speaking indicate to me a few things. First, she's probably familiar with his work. If she's not a friend of his, I'd be surprised if she hasn't seen at least a couple of his performances. Her behavior is excited and anticipatory - she knows something cool and weird is coming and she's happy about it. The reaction of laughing at suggestions like that hitting is common. Remember that someone who is hypnotized is relaxed and comfortable by default (Doesn't have to be that way, but it almost always is for entertainment purposes). So we take this all together and what you have is someone who is looking forward to something weird happening, and then it starts happening. Her mind is basically going, "Is this when the weird starts? It is! HA! That's SO weird!"
Don't look at this as a magic demonstration. It's mentalism, and that's a different beast entirely.