If you go by most dictionary definitions of domestication, "to tame; generations of breeding that make it unable to survive in the wild, creating a human dependency to live", then all snakes aren't domesticated.
BP can instinctively survive in their natural habitat just fine, the only problem being the bright morphs make them easy prey LOL. That's why we have to create setups IMITATING their natural habitat and natural needs, because they're not domesticated.