I think maybe they were saying that their personal AI slop detector had produced a false positive on "whole personhood", and they felt sad about that? Or perhaps I'm missing it.
I am annoyed at my slop detector firing at something completely benign.
This does make me wonder if consuming AI writing will cause the style to be subconsciously picked up.
I am also actively avoiding the same construct you used (not X; Y). It is particularly annoying as I used this very frequently as a rhetorical tool.
And ultimately, I think this is sad. Communication is now less optimal as one has to evaluate if the other is just regurgitating AI. Ideas are important, but so are their shape.