Anyway, there seems to be assumption, that those 92,8% are also streamers. They are not - they are mainly watching others. So, to take a closer look on Twitch monetization, there has to be data only about streamers, that excludes watcher accounts, or those that are not doing seriously any streaming. As a rule of thumb, if they are not affiliated and not receiving income from Twitch, then those 92,8% Twitch accounts are not streamers or as the article states - they are not content "creators". It still is a lazy article for what it claims to represent.
Yeah, just take a reasonable comparison. Youtube. I think everyone there have a channel, some minority have even videos. Still just because I have uploaded a few things doesn't make me a content creator. And I shouldn't be included in any math involving content creators.