Probably because it showed that this didn’t look like a very interesting game.
You can still catch it on twitch (temporarily, only the last 6 videos of Tom are preserved there, so it will be gone in a week or so) there: https://www.twitch.tv/videos/294114559
Tom got me on today’s stream: he labelled it Gladius, and it was opening Chris’ link that I was remembered it was that Warhammer game. What a terrible title!