You clearly haven't done much editing! :)

I see your point, but I think it's fairly easily explicable and works in both ways. No one feels specifically excluded by poor syntax! In the other direction: pointing out that someone has written a sentence with twisted syntax can be perceived as an attack on their writing skills, but pointing out that someone has written a sentence that might be exclusionary to certain people can be perceived as an attack on their character. The impulse to be more defensive over the latter is understandable.