You're talking about Bellular, I saw that clip and it's actually pretty funny. "Double stygia bois! New game!"
Such a weird thing to get mad about, obviously some rates are being more relaxed as the game progresses, but in this case, the grind was way too big to get the rewards from it (I never bothered with it, and played only the 1st month of shadowlands anyway, but that was the impression I got).
Also the biggest WoW channel on youtube as far as I know, is AsmongoldTV, which only has clips from Asmon's streams
Many of WoW's youtubers/streamers make really good content and are very entertaining. Lets check some of the bigger ones:
Asmongold - the man, the legend. I almost never watch his streams, I'm a youtube guy, not a twitch guy, but I watch many of his clips on the AsmongoldTV channel. Very entertaining, and lots of funny moments.
Bellular - amazing work rate, great content, the addition of Matt is a welcomed one, he has 3 channels now, he's taking over youtube, and later, the world.
Preach - fantastic content and a great human being, someone to aspire to. The "drama time" series are some of the most entertaining stuff I ever listened to on youtube. It's a huge loss that he won't be covering WoW anymore. I also regret that I didn't attend any of the Preachcons, with the covid situation and him not covering WoW anymore, who knows if there will ever be another one.
Nobbel - Quality lore content. I barely watch him, because I don't care much about the lore, but he's really good at what he's doing.
Taliesin & Evitel - Good, high quality content with a lot of very nerdy jokes. Maybe he's too positive sometimes, but I like his channel.
I watch some other WoW youtubers sometimes, some of them are doing a good job IMO (signsofkelani, hazelnutty games, soulsobreezy, madseasonwow (who quit) ), and some of them less so. I don't come across bad or toxic WoW youtubers too often, but if I do, I don't stick around to watch more of their videos. One example of those is HeelVsBabyface, I don't like what he's doing.
I also want to point out that I'm not some kid who looks up to his youtube heroes, I'm 41, and I happen to enjoy some of the WoW content on youtube.