Reason is run by libertarians, who start by assuming their own axioms are true and "argue" from there--in everything--and against/in spite of empirical observations. ChatGPT almost certainly does have some bias, as most AI does, but this article doesn't make that case, and I am skeptical anything Reason produces could.
That's not Reason being unreasonable.
https://www.reddit.com/r/ChatGPT/comments/zsnrcu/biased_ai/