As someone who's been trained in, directing and teaching acting for nearly 2 decades now, I am an absolute stickler for acting in haunts. I've never seen it genuinely "good." 98% of the time it's been awful with the other 2% being passable. Including anything at HHN. I understand if GP or casual fans are into that thing and can forget about it, but there's too many layers to a performance for me to just turn my mind off to it without critiquing. This is why I love Haunts with elaborate sets, sound design, make-up, etc. because my focus is more on that. And probably why I love HHN so much, because they usually pop out and go away without too much acting-performance (at least not dialogue). Generally the performers outside the mazes or the one-off scareactor in a zone have been at most tolerable but generally crappy. And anytime a monster at KSF opens their mouth to say anything, suddenly any amount of fear or immersion I had is completely gone because now it's been ruined. So if something is relying on or leaning into the "acting," then chances are I'm not going to like it.
The other aspect to it is, these performers have to be "on" 7 hours a night. Even interchanging with another actor, that's still 3.5 hours, which is a long time to genuinely stay in character, be in the moment, and in the zone. And then they have to do it night after night, same small scenes over and over again, plus interaction. I always feel bad for the victims in HHN mazes who have to pretend they're being murdered for hours and you can tell they're exhausted and not into it at all, trying to give their 100% but it's coming off as only 25% selling it, which is nowhere near enough IMO.
If WB can even have ONE character living under imaginary circumstances TRUTHFULLY, then it'd be a job well done. Because I have not seen that anywhere else.