This article is suspect for a lot of reasons.
It's written in the Global Times, which is an offshoot of the People's Daily, which is the mouthpiece of the CCP.
It's only written in English, which means its only target audience is foreigners.
Culturally there are still many prejudices against homosexuality in China, and most Chinese people would never accept such an idea. It's not even that they're morally opposed to it, it just "isn't done." In one of my classes today, my professor talked about DADT and how, "for the first time, gays can serve in the military and engage in 'homosexual behavior' [in the military]." That's what this very paper (we analyze headlines in Chinese every day in class) wrote about DADT (as you can see the facts are skewed more than just a little).
It's a cute love story, but it doesn't represent a changing tide in China.