To me, if you are in a pin and exposed to being genuinely hurt and you insist on thrashing about, Uncle Darwin is smiling down upon you..... The pin is a pause for both sides to take note of the current situation and respond accordingly. The graciousness of the pause should not be mistaken for weakness or strength.
I'm not sure if you are right. But let assume you are right for a second. Only experienced fighter will recognize the capacity of Nage in such situation. 99.99% the rest of attackers will fight back continuously blinded by rage. So what, you will incapacitate them without mercy? This is a kind of message you will send to the world after 30 years of aikido practice?