He definitely should have not posted that video. I mean it was just horrible.I was thinking the same thing when I watched it (even came here Sunday to see if anyone else was talking about it). On the podcast today he seemed really off and made comments about how he was tired that gets attacked it if he is too positive or too negative. If he was referring to that video he should be aware that it wasn't the problem in this one. It was less negativity and seemed more like hostility/resentment at having to make it. He probably should not have posted it. I say that as someone who enjoys his content. I felt bad for him. He should also be given the ability to make that call if a video just doesn't work.
The comment thing, Demi is the only person it could be. The group that seems to hate him most is the "Disney is for families" group. He used to have "Magic Killer" in his display name on Twitter because one of them called him that in a video comment for not reviewing something positively supposedly due to not having kids. To that group Demi was the family reviewer so her leaving must have been due to the person they hate. If people have that point of view that's fine but they really like to go after him. IMHO her, Craig, and Ryno made a good team and seemed to get along pretty well.