AIO about my husband putting our toddler’s toothbrush on the bath mat?

My husband was bathing our 15 month old and decides to put our toddler’s toothbrush on the bathmat. I was shocked and immediately threw it away and told him that it was disgusting. He doesn’t think it’s bad because he placed it with the bristles pointing up and he was going to rinse it before he put it in our toddlers mouth. I still think that’s disgusting. The bathmat was still moist from a previous shower and honestly needs a wash. It’s pretty close to the toilet as well so I don’t think rinsing the toothbrush before putting it in his mouth is enough… Am I overreacting??