Doesn't mean it makes sense. Isn't that still just second person plural? "Chat" being using as a collective noun.

A collective noun is a word or phrase that refers to a group of people or things as one entity.

This isn't some new-fangled youth speak breaking all the laws of language!!! It's literally just...english. Leave it to the media to blow something way the fuck out of proportion to create unnecessary conversation around their stupid ass article.