I may not know much about breeding, especially with retics, but I can say that this video made me a little bit uncomfortable.
But I guess some people are right. You tell someone who has never picked up a baby or small child off the floor, and they'll do it super-awkwardly and overly-gently. Then, when you watch their mothers pick them up off the floor, it may look a bit more rough and/or fast.
This guy would be classified as one of the "mothers", since he's been hatching healthy babies for a very long time. It may look more rough to us, but maybe the more experienced breeders feel that this isn't an issue and doesn't hard the animal, including this guy.