I was surprised at how unpleasant both other broodies were to their babies when they “kicked them out of the nest”! They are still pretty unpleasant if their former babies get too close... I much prefer Susan’s style!!!
I agree, I don't like it myself but I've never seen one actually hurt their chicks while cutting them loose. I think they hurt feelings more than anything else.
From my observations with my own flock it seems to be that they are establishing pecking order even with the young chicks at that point. My lower pecking order broodies seem to be the nicer ones, vs the hens higher on the pecking order being tougher on them.