For some herp species, brumation (not hibernation) is part of an annual biological rhythm that is sensitive to the seasons. Even when such an animal is not induced into brumation in captivity, some biological/physiological changes are observed while the animal lives indoors in constant conditions. Day night rhythms are also found in indoor animals kept in constant environments, and are called "Circadian Rhythm". These rhythms are demonstrated to change hormone levels, fat to body ratio, changes in organ weights, and other such phenomena.
I suspect a short and mild brumation in captive animals is beneficial to those species. And yes, they develop this seasonal sensitivity and the ability to brumate in order to survive winter... but once that evolution is complete, and they have the ability and this rhythm built in, then it is what is natural for them, and not an ordeal.
Just my $.02
