This is a really great article.
The author laments content creators trying to bring viewers into their discord or twitter instead of personal website but conveniently ignores the fact that people are much more willing to go to and likely to return to sites they already visit.
I don't think content creators are especially happy to be reliant on youtube, or twitch, or whatever other site they're on. But the reality is that's where the people are. When creators have left those platforms they've consistently lost the vast majority of their viewers, because the reality is that there are plenty of other creators on the platform for viewers to migrate to.