They are going to have to train flight attendants on how to use a taser. These conflicts are up close affairs and a taser is the best choice in trained hands.
The verbal sparring aside, I would like to know what the airline's rules are WRT strollers on planes. I cannot see strollers being allowed on planes because they would impede unhindered evacuations, should that be necessary. They would be stowed somewhere and not kept onboard, blocking the aisle.
From what I saw, the guy who stood up was more of a problem than anything else.