Trial dealbreaker?

Is this a dealbreaker for a trial? I'm a new mom and we've been trying to find a career nanny for our 3 month old. One candidate seemed great but I heard the baby screaming so I checked the cameras and saw her set them down on the changing table (unstrapped) then walk away to close the nursery door before walking back to change the baby. They're not rolling yet and she probably assumed theyd be fine but we were taught as new parents to never walk away from a baby on a changing table. Am I being dramatic? Would you still hire them? They otherwise were good but this scared me as an overprotective new mom. We're paying market rate for our area given the duties required ($37/hr)