The number of people who think a YouTube video is a credible source of information would be hysterically funny if it weren't so pathetic.
Imagine, when you were still working, if you went to your District Manager, CEO, Commanding Officer....whomever....and made a recommendation to him. When asked to justify your recommendation, you tell him you saw a video about it on YouTube, lol.
You'd be laughed out of the office and, quite possibly, out of your job.