It's a very, tired joke, and context matters. Like how jokingly saying "call over one of the nerds, they'll sort it out" regarding a difficult problem would be okay in a technology company, but on the risky side (as in, likely to cause a bad feeling) in high school.

Of course, high school kids haven't learned etiquette and don't care, but we want to hold higher standards in the workforce.

I agree context matters, which is why the context from the second paragraph of the parent comment is rather important.