No, disparaging is disparaging, even if it’s warranted. But, if I were a small streamer who got a key, I would just repeat the non-disparagement clause any time I saw something obviously broken.
They can stop me saying anything negative but that doesn’t cover body language (they might try to sue but they wouldn’t ever be able to prove it to the degree required unless I had posted something like this explanation, and even then it’s dicey), and I don’t see anything in there about a minimum number of positive sentences of words to hit. God help these chucklefucks if they ever run into a Djinni or a cursed monkey’s paw.