Maybe you're being downvoted because you're spouting unsourced nonsense with a wink-wink as to why it might be true, instead of "teaching truths"?
A line in a book about interviews of abused women doesn't really equal actual research sufficient to back up your wild claim here. Further, you stated that women in abusive relationships "overwhelmingly report have fantastic sex lives", but you've posted a line from a book stating that roughly half (of some) abused women said their best sexual encounters had occurred immediately after physical abuse.
That's a world of difference, and it really draws into sharp relief the underlying point you were trying to make (your clever "draw what you will from this, but..." notwithstanding) and how far from the truth it actually lies.