You obviously read one paragraph and not the whole article. That nerve is like a main highway, connecting many different parts of the body together.
No where in the paragraph that you cited does it say orgasm occurred because of stimulation of the nerves in the womans throat.
Most likely the reported orgasam took place because the vagina was stimulated and those sensations were sent through that nerve to the brain which released hormons and neuro transmitters in an orgasm.
Even if it was caused by stimulation to the throat that may only be because they were paralyzed or some other neurological difference. The brain is a wierd thing. Look up phantom limb syndrom.
If there was a scientific study that could reliably show that stimulation of a yhe throat could cause healthy women to orgasm then that would be proof. This ain't it.