Context for the article is important here. This article is written for "GIRLS" which is targeting specifically, young women. The tagline for the site is "Girlhood in the Modern World". I think it's valid to talk about it in that context, just as it's valid to talk about it in a BOYS context, or MENS context. It's a discussion piece, which is used to open a discussion on the subject, and does present opinions.

That said, I hope the AI GF/BF will model good relationships, and hopefully people learn from that, so when they desire a physical relationship, they'll know how to handle themselves with a real partner. However, it'll be difficult to do that with the current state of these AI apps that simply agree with everything you say and validate everything.