I personally see both sides.

On the one hand I see nothing wrong with a breeder selling an animal out of the egg. I know several breeders who offer an "out of the egg" sale where you can buy hatchlings fresh out of the egg for a discount. All that's guaranteed is sex - up to you to get it fed and shed. The advantage is that you can often get really high end snakes for much lower prices and if you're experienced, then it shouldn't really be a problem, especially buying from someone who has quality stock to begin with.

On the other hand, selling to someone who is very inexperienced or its their first snake a snake that is "out of the egg" would be irresponsible as a breeder.

But if you're wanting to sell them right out of the egg and to someone who knows that they're doing, I have no problem with that at all.