I don't think there was enough there to make an almost 2 hour documentary about it. Even more strange is that there is some interesting theories out there and the vast majority featured on this were total crap.
What I take from the Shining personally is that it's a movie about the horrors of the past and people ignoring them and it all happening again. Jack having nightmares , Grady not remembering butchering his family , the mention of Indian burial grounds and fighting Indians away from the hotel with a sense of glee. Gallons of blood squeezing from the elevator doors which are shut as if the truth can't be held a secret. It was one guy that picked up on this for just a few minutes.
The fact that there are mirrors in every scene with a ghost could also be pointing to a persons own reflection ( I was really surprised this didn't get a mention unless I missed it ).
The Minotaur crap was ridiculous and the guy at the end saying his life was turning into the shining had me in stitches.