I think the risk of being disarmed is so low that the risk of the fingerloop being harmful is essentially immaterial. I wouldn't drive my car I was worried about probabilities that low.
Then like Juany we will agree to disagree.
I have seen too many use of force encounters where as soon as the officer struck the attacker with his flashlight/or other tool and all the attackers attention going straight to the flashlight and on taking it away.
Would rather be able to just release and take the guy right down instead of fighting to retain it.