He gives some very interesting hints about what a YouTube channel is about... (advertising). Interestingly , there aren't that many Youtube channels reviewing Phase One, or Alpa, and when they do, they do it with a certain dislike (read disdain) from the point of view of the average consumer. The smaller the camera systems, the more fuzz is done about is. It's comparable to how much review is done on Youtube for Caterpillar excavators compared to the Lego versions of it
YouTube is the new TV of 1980 - 2020 where you had no choice but have your favorite movie series interrupted every 40 minutes, then every 30 minutes , then every 15 minutes , for a paid Advertisement. YouTube becomes the same as TV: a few years ago you could watch a Youtube Vid without Ads, and now you get Youtube Vids interrupted by a half dozen Ads trying to sell you something, in addition to the Ads you get dynamically refreshed in web pages. Internet Advertising is a massive market, Google generated more than 9 Billion revenue in 2019 and this is increasing. All these online businesses wants is: 1) your attention 2) your interests (via cookies etc, what sites you visit, what videos you watch and what is your IP number). Reviews are essentially attention catchers, the content part of the videos seldom goes beyond teaser. Time to go offline.