Omg, this is a cute video with the cutest baby bats ever.
I thought you can't touch at all the wings! I read somewhere that if a bat flies into your house, you shut the lights off, put any tiny light outside (if there's none) and open the door and the bat flies away. It was important not to try to pick it up so that the wings won't get damaged. Of course, in the video the caretakers know what they are doing and actually they are not touching the delicate part of the wing.
Thank you so much for finding this video and sharing, Jade!