Aye in the wild you would be right they have little chance of surviving from predation - although they're not a cannibalistic snake like a king they can eat siblings if forced to or even by mistake (two snakes eating the same meal, neither backing down)
However in captivity we try to eliminate as many risks as possible to the babies, until their first shed where they get harder scales we keep them on damp paper to avoid any injury or infection as their first two days they drag whats left of their cord and egg around with them. We keep them separate mostly to avoid them eating each other too and we remove them from mummy asap to avoid her accidentally crushing them.
Crushing them? Wow didn't know a snake could be so heavy.
I can understand such thing happening on accident because I live on a pig farm and sometimes a mother lies down on 1 of her piglets when its trying to drink milk. It doesn't happen often but we are trying to avoid it at all costs.