Not everyone avoids haunted houses because they dislike horror. Many avoid them because they dislike being touched, chased, singled out or surprised by another person at close range.
No Actor Night removes that variable.
The environments still operate. Lighting, sound, scenic work, animatronics and automated effects remain part of the experience. What disappears are the live performers waiting to scare you.
Is it still scary?
It can still be dark, creepy and visually intense. It is not a children's daytime tour. The difference is predictability: the building itself provides the atmosphere rather than a performer deliberately invading your attention.
It is also a better scenic tour than a normal haunt night.
Regular guests often move quickly through detailed sets because actors are doing their job. Without that pressure, you can actually notice the construction, props, lighting and effects that normally become peripheral.