I think it was pretty obvious that a lot of the audience were leaners who self-identified as undecided. This is the reality of polling. Some people refuse to identify their lean because they see their choice as totally binary: either they're decided, or they haven't decided yet. I see this in polling results fairly often, even for voters we know have pronounced partisan leans. I think that's what you were seeing there, too...and then they chose the ones with the most interesting questions, I suppose, which probably further skewed toward the ones who were actually decided.
Ken Bone asked one of the more thoughtful questions on policy. He was better than the moderators in both debates in that regard.
I'm not at all on the Ken Bone hate train, but was his question really thoughtful? He basically said that fossil fuels aren't good for the environment, but they're important to jobs, and then asked one of those vague "how do we balance things?"-type questions that generates comparably vague answers that basically amount to "by balancing them real good!" Bone seems like a smart guy, but that's 'thoughtful' by what, middle school standards?