I would imagine that there is a pretty wide gulf between simply being critical of Discovery vs. engaging in bannable behavior.

I have been openly and severely critical of Discovery for years on the subreddit and was never banned, so it might be worth examining the nature of your critique.

Good-faith arguments and critiques are always welcome.

As has been said before, you've always been allowed to criticize Discovery, Picard, and any other new Trek property. You just can't be lazy or fill it with nonsense dog-whistles.