Flyingsaucered

So I'm prepping a baby cornsnake for my nephew (feeding, handling, transitioning to f/t, etc) and I noticed that he doesn't strike or constrict the pinkies. He just grabs the head or butt and swallows it while it's still alive and squirming. I'm worried that it could be scratching his insides. Is that possible? Should I be concerned? I know it won't be an issue when he's transitioned over to f/t, but for now it makes me nervous.

Thanks in advance!

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