I didn’t downvote but I think it’s more because grandparent reads like a shallow offhand dismissal. Perhaps if GP provided examples of bad code and better ways to express them it would be a more productive comment.
I didn't see any actual technical content in that comment. I don't see any repliers commenting on tone but I do see a comment or remarking that they disagree with the technical assertion and asking for actual technical content to back it up.
So I think your assumptions about the reasons for the down votes are inaccurate.