This does bring up a really trivial point that I worry overshadows the important element of this discussion. But I'll go there and hope for the best. When I last went to Monsters Inc Laugh Floor, I was "That guy" (which I hated - not in a bad "I'll never come back" way but in the "I really, really don't like attention" way - and endured my time in the hot seat just fine). As I identify as a guy/male, etc, it's fine with me (I'm equally pretty fine with fluidity in gender roles and I'd never be upset with someone referring to me as they/them, just as I found it interesting that a couple of friends were 100% positive I was a trans man when we first met). I imagine that my oldest, in particular, would really struggle with the label "that guy" as they don't identify as a guy (but were assigned male at birth).
"That person" or "that human" doesn't quite convey the thing in the English language that "that guy" (or even the phrase, which I don't think I hear ever, "that gal"). My academic background is in Race and Gender Studies (formally, though it also included things like disability and class) - it makes me wonder if there are DEI Readers amongst the Imagineering staff looking at old attractions (I trust it's happening for new ones) ... and if not, I volunteer!