The hypothesis kind of seems like selection bias to me. It seems more likely to me that in order for life to flourish as it has on earth, it has to (by pure chance) create a self regulating system, as otherwise it will eventually die off. What’s interesting (and I hadnt thought about prior to reading the wikipedia article) to me is that it seems possible that the current rapid temperature rise will lead to some organism(s) we don’t know or think about multiplying like crazy, and that has some form of cooling effect due to the organism’s emissions or w/e. Industrialized humans appear to be the most extreme (in the sense of rapid, persistent change) climate event to happen to this planet since it has had life, but at the very least we’re not the first time something fucked up the climate. Maybe we’ll just get lucky after all.