How do you know who is clueless about real football, and what makes them have less of a clue than you, another d***head on the internet?
Most top level clubs recruitment teams use statistics as part of the basis of judging which players to sign, along with watching them actually play, the two are not mutually exclusive.
There is no way for you to know how old a Youtube creator is, and some of them put a lot of time and effort into their videos.
It is nice to see you are unable to accept changes, condescend people that you have no idea about, while expressing yourself with baseless assumptions because you are out of touch with modern times.
These people have just as much or just as little football expertise as you, and there is no way to really prove otherwise except your opinion on who you believe is more knowledgeable.