If you believe that HN is a hive mind and all users must believe in the exact same things, then yes, this is probably hard to believe.
I however, am tired of LLM news, but I just simply ignore them as I'm well aware that many people here are very much interested in them. So at least an anecdotal response of one that some HN users are tired of LLM related news.
You might also be surprised that not all HN users like social media while some do. Some are very privacy conscious while others will freely post all of their everythings to anywhere. You might find it hard to believe that some lean left while others lean right with some even landing straight in the middle. Why you would think anything is hard to believe in this day and age is very strange to me.
Replace "HN users" with "most HN users" (it's common to use general language when one's intention is to point out a trend in a population) and, as another person tired of AI/LLM news, I would also be surprised given how much popularity (upvotes, comments) HN users tended to give to those stories.