Is that really happening? Could you please provide a source of that info? I would like to read more on it.
What you have mentioned is very true as people don't even understand the rising problems these days.
On the other hand, why haven't you created any topic on this incident?
I don't mean to criticize your or anything but wise people like you should open such discussions as it will enlighten others about the real problems.
Others provided links and I'd say MARA pool is the most well known case of such censorship since they celebrated it themselves in their own announcement! I've also been talking about it a lot in various topics, I also shared some thoughts a year ago in here about traces of centralization in general (not just mining related):
https://bitcointalk.org/index.php?topic=5494280.0