I'm unconvinced by the position that the only valid means of casting doubt on a claim is through forensic examination of hard data that may be inaccessible to the interlocutor (like most people's bank accounts...), but whether that is or isn't a generally good approach is irrelevant here as we're talking about claims about courses of action to avoid hypothetical threats. I just noted it was a particularly useful rhetorical flourish when advocating acting on beliefs which aren't readily falsifiable, something CS Lewis was extremely proud of doing and certainly wouldn't have considered a character flaw!
Ironically, your reply also failed to falsify anything I said and instead critiqued my assumed motivations for making the comment. It's Bulverism all the way down!
So I don't think it's a good idea to insist that people should be falsifying the idea that AI is a risk before we start questioning whether the behaviour of some of the entities on the list says more about their motivations than their words.