That's because you are just looking into people's comments with a suspicious eye instead of just addressing them at the surface level. I know you said not all, but
this is my analysis of the problems with the footage. Plenty of others probably feel the same but didn't have time to write extensively detailed positions, and so like the people writing short "THIS IS AMAZING" posts, they chose to write "this looks kinda lame" instead.
I think if you are around here long enough and you know that certain posters have ulterior motives (SenjutsuSage, for example), then it's natural to view those posts with a skeptical eye. But as you said you're new here, it'd be best to not assume things about people's motives. Just consider the actual content of what people are saying.