It sounds like you're an AI-happy employer though. What if their truthful answer was that they never tried to use LLMs and refuse to because they waste water or because of an overconfident view of their own skills, or they don't want to help a clanker steal their job? These are all popular beliefs that can easily come from following the right crowd rather than forming their own opinion. In fact, from what I usually hear of people's opinions, they almost never come up with them themselves, you can practically predict people's opinions on some topics just from what they look like (what social group they belong to) or what other unrelated opinions they've already told you.
I guess that's the point though? If their opinion only comes from common popular opinions, then that signal is quite useless to me.
In this case though, I'll admit that it would be a negative signal if they never tried it even once and refuse to do so. You can't make a solid opinion on things you never try after all. It would be different if they at least gave it a shot and disliked it.