In reality, teachers HAVE to put their hands on kindergartners. They have to. Our school tried telling teachers they couldn't touch the children and it was horrible. Children that age need to be hugged, and restrained. A teacher who can't grab the arm of a child and get right in their face and tell them they're in trouble is a teacher with fewer tools to deal with children who need more guidance. Some children (most children, actually, don't need that). But some children within the classroom will not behave if not physically forced to.
Again, I don't know. With my experience with our school district, there are some kindergartners who are simply not told at home they have to obey the teacher. Just from listening to the dad's comment, I suspect this is one of those cases. He's not been taught respect for rightful authority.
This has been going on since November with this child, disguised. It seems to me that the parents have been called repeatedly and the teacher still didn't get results. I really don't sense, at all, that this is a case of a compliant child and a crazy out of control teacher.
No adult is supposed to behave aggressively toward a child in a school. If the teacher needs help resolving a behavior problem child, she adheres to a disciplinary process. This woman clearly has other issues contributing to her aggression. Glad to see she got an attorney. I think she's going to be facing criminal charges.
JMO