As an Ideas Guy he is of course the most important part of the process. Not the person who put in long hours creating really impressive videos from scratch. Certainly not that same person who actually started assembling a coherent mythology out of what had previously been an old picture of a disused convention center room and some random /x/ posters' half-baked copypasta attempts.
Honestly the whole backrooms thing lost its mystique after people started adding scary monsters
The original copypasta ended with "hope you can't hear anything because they definitely hear you"
Kane Pixels is the only one doing it properly. There are "monsters" but their form is nebulous and their nature completely unknown. As it should stay.
The backrooms as a concept was the best when it was just an uncomfortable liminal space that made you feel like nothing was real. It was like the setting of a weird dream.