This situation risked her life. Not her feelings, not his feelings, not material possessions....HER LIFE.
There is no discussion with him on that point. This is a black and white situation...there are no shades of gray here.
Your daughter will learn that there is nothing more important to you than her safety and that there are some things people can't minimize and apologize their way out of. Those are good lessons, yes?
Find your inner grizzly mama, because this guy could have hurt your baby and there is no minimizing that.
P.S. Oh, and he bought her a puppy? As a dog lover, that worries the hell out of me. Who's taking care of it?