I tihnk there is a bit of the guilty until proven innocent thing going on, for years accusations were not taken seriously, now it's the opposite.
If the screwer was a man and the screwee was a woman and all the same happened except the man pretended he was a brunette when really he was ginger.
After the blindfold went on he whipped off the wig exposing his orange locks. If he then had sex after pretending not to be a ginger...
Would there be a case for sexual assault?
Of course not. It doesn't become rape just for lying about a physical condition...
If I tell a woman I have a 9inch willy and she later found out it is only 8inches does that take back her consent? Have I raped her by lying about my penis length?
What makes this case different than the above is she lied about her sex. In the eyes of the law that's not supposed to make a difference. Sex, like hair colour or penis length is just a metric.
I think what got this woman arrested when the ginger or 8inch willy guy wouldn't have is "ew homosexuality" mentality. Just a theory. Wasn't there to witness, but that's my suspicion.
How many times has a scumbucket lied to a woman about being a doctor, or a programmer

, to get a girl to sleep with him?
Dishonest but not exactly rape. If it was consensual it was consensual. If lying makes it rape almost every man on earth is a rapist.
"No honey, your bum looks great in those knickers, now come to bed."