There are many pros and few cons to artificial incubation, which is why most breeders choose to pull the eggs from mom. Other than observing a natural behavior, there is no real reason to allow mom to incubate.

Maternal incubation in captivity isn't really that tough however. Female pythons can control the heat and humidity of the clutch quite well, and a tightly coiled mom on eggs can hold in heat and humidity very well. As long as she is given good conditions to incubate (mid 80s ambient temp with a warm side to get up to 89ish, 70-80% humidity throughout) she can easily do what she is naturally designed to do.

-Evan