A bit too SJW
Lets face it, if the doctor had never married Riversong and had a kid, or indeed started coupling up at all, this would be throughly normal. But since the Doctor has already done so, now there's a bit of a mess.
There's plenty of SJW possibilities: Riversong could be pissed off she's made into a lesbian without consent, or could embrace it and have her own sex change. But then she might be homophobic!
I suspect the more this crap goes on, the fewer people will watch, and then the next Doctor will have to exit a shower asking what he missed :-)