Hospitalization did result for 2 of the kids. That is "less severe" considering they have lethal force as an option.
Was it appropriate for the situation though? That is what upsets people. It seemed overblown. The other situations in other places have their own considerations. In a lot of those places, responses seem overblown too. That is what is making more and more people join these protesters in other places.
Let's make this as objective as possible. What is the checklist for cops? What principles dictate what is appropriate vs. excessive force?