Earlier quoted context omitted.
Sad? No! It's always been impolite to comment on people's appearance unless you are close with them. When you make comments about the appearance of your coworker there's so much that has the potential to be misunderstood and it's just so totally unnecessary. This isn't new either, Miss Manners has been advocating it since the 70s.
To be fair, I think that only applies to if you have something negative to say.
Please stop making unsolicited comments about my body, please and thank you.