Ok fair point but theres alot of the time when opp call and when he does he will almost always check turn too so we do see a river. thus we do still have our 11% equity. Of course there are times when opp will shove flop but since its a dry board they can still slowplay KK and AA thus we have our 11%.

and as you worked out if we had zero equity its still good

Also unlike raised pots we are unlilely to get played back at in reraised pots when we raise dry board.