It's not always "unquestionably" good, first because nothing should be unquestionable, second llm models have a very short shelf life, third it comes from Zuck who is an the center of the oligarchy, so questions very much should be asked

Don't let the Big Ai/tech swoon you with a single open model, even if it turns out to be good. Zuck broke the trust and I'm not sure if he can ever earn it back