I just watched the first eight episodes and didn't notice any "gayness" that warrants cancellation. But I also…
I wouldn't want to be so blunt, but... I'd bet that it's something involving the author's rights, the actors who are the protagonists are clearly good actors and at least in Korea it's not the same as in hollywood in general that any "5 star" actor plays a gay character, in China it must be the same.
In my opinion, this is the best BL series in progress at the moment. It's the kind of script that the scriptwriters are enlightened by, there's not one boring episode.
It may seem strange, but I have the feeling that the actor FU XIN BO has given a more emotional performance here in this Cdrama than other Chinese actors, so he seems to me like an Asian acting in America.