My child was hit with a toy
Wow, that's unfortunate. I understand your feelings and why you wish the teacher had called you before taking action. However, teachers are required by law to report suspected abuse. We can be liable if the child would be injured or killed and it was discovered that we didn't report prior injuries and observations.
It sounds like things are working out. I would still talk with the administration, counselor and teacher to make sure everyone ends up on the same page.
I'm sorry you had to go through that!!