I don't really get that (the woman only, although I don't get skill courses either, waste of money IMHO).
I can see two reason why a girl would want to ride. One, have a shared activity with her partner. Second, they just like riding bikes.
Now why would someone not be caring attentive to his partner while teaching her the basics or mtbing is beyond me. Maybe, just maybe the relationship needs to be "re-evaluated". Second, if the girl like it well, I am sure anyone who rides a bike and has not got a login on STW is genuinely not a cock and will be happy to help. Plus they are plenty of clubs that run beginners session.
Coming from another sport where there is no "girl only classes" I just cant understand that. Surely if you like your sport, you'll do your best to help others to do some.
No…
Then if we look from the marketing side of things 😉