I think this all stems from you objecting to this statement:
"I don't know why I am still perpetually shocked that the default assumption is that humans are somehow unique."
I think you're being uncharitable in how you interpret that. Human's are unique in the most literal reading of this sentence, we don't have anything else like humans. But the context is the ability to reason and people denying that a machine is reasoning, even though it looks like reasoning.