Old-ish question, but it's sort of in-between. I've never seen Gabe ban someone outright just for criticism, but it isn't met well either. A good amount of criticism came up about the Patreon drag increasing development time beyond even the sort of slow standard set with 2, and the defense was an entire blog post dissembling about how much was done and how different the games are.
It should still be on the blog. The big issue with it was that it pretended 2 was a single game that took about three years (instead of being released in a few episodes exactly like this game) and that each episode of Origins is somehow equivalent to the entirety of 2. Basically saying, "look, I put out 2-ish things in the time it took me to do 1 before, so shut up." This all ignores that work on this game began in late 2013 based on blog posts, and one episode per year with three episodes was the expected timeline.
The blog is sort of a hug-box generally. And if you criticize the game here, chances are one of the readers there will see it and relay it to Gabe, and they'll have a nice discussion about what a fucker you are. I posted on ULMF about how the game uses stock assets, reuses assets, and keeps issues from previous iterations because Gabe can't seem to be bothered updating his toolset. That got cross-posted to the blog, and they had a little chat. Gabe quietly tried to fix one of the issues I brought up (tried), and banned me from ever giving him money on Patreon because I posted a link in the same ULMF thread to where someone had reuploaded the then-current beta.
So, long story short, questioning his creative vision or decision-making probably won't go over too well, unless you have the patience to do it so gently it barely looks like criticism.