I don’t understand what is so confusing to them about this: AI distinguishes between the sexes, so its exclusion of trans women from Giggle is the result of it doing just that.
The thing is, originally transwomen were permitted via manual intervention.
It was the stink they started causing that convinced Sal that actually letting them in was causing more of a problem, so she reversed policy and said, no - this whole concept will work better and make more sense as female-only.
It was the admission of transwomen to a female-only app that was the error, and she has already corrected it.