I have a suspicion that the only way such content has any value today in a world with quick and easy access to online video is that they are given copies prior to the release of the game. They get clicks because of peoples impatience to learn more despite being able to see effectively infinite amount of content as soon as a game is officially released.
But the problem here is that game reviewers livelihood is entirely dependent on getting early access and if they don't speak highly of the game then their livelihood can be cut off. They are basically all bribed into giving positive feedback. I think it is actually worse than nothing at all. It is actively harmful to finding out what a game is actually like.
I guess my point is that we should just wait until a game is released. There are infinite copies and there exists more games than anyone could ever play. Reading some heavily biased opinions about a video game a week before it comes out is not meaningful.