[tarotuser]

First, use a good adblocker, like Ublock Origin. There's no ads in the actual video the Professor posted.

Secondly, his audience is tabletop card gamers. He does set the scene as to why he's making a video. Most of his audience is not of a technical nature.

I also made a synopsis as a comment so you didn't have to watch the video, since some (including myself!) despise video-only content. But I do follow him on YT. And his problem applies to a LOT of areas on YT, Twitter, Facebook, Reddit, and elsewhere.