Sorry to say this but you are not correct in this assumption. There are quite a few breeders who heat their rooms and not the racks at all. You also have to think of the people that use RHP (radiant heat panels) and back heat. Think of in the wild also. Ball pythons don't go out to a sunny rock to digest after they have eaten. They are nocturnal opportunistic animals. They go out at night when hungry, catch what they can, then go into a burrow or termite mound for the day and digest in their hides. Please do a bit more research before telling people "This is not true and its pretty stupid to presume"