I absolutely didn't treat it as a taboo. I treated it as patently wrong and naive.
That taboo was the thing that people latched onto and not de-legitimization or power structures says everything. Rather telling
You didn't make a case for any of that. No one did. This whole discussion is just a bunch of people who have their feelings hurt when other people tell them a LLM is modeling language, not reasoning. It's so narcissistic. "My opinion on AI is criticized so I'm oppressed."
That is not how oppression and power work. That's not how discussion works. That not how Foucault's analysis of power works.
I don't know whether it's past the mark enough to be considered a "taboo" yet, but the other comment replying to him is certainly treating it as taboo. I would note that many, many other people particularly in academia/important society act the same way as the other commenter. I'd also note I have felt strong social pressure to not hold the beliefs I hold about LLM's capacity for reasoning, including actually losing meaningful social status.
Probably worth remembering that different subcultures have different taboos.