At the core, it's Buddhism not Theravada, Chinese Mahayana, Zen or Tibetan. Not even Gelug, Nyingma, Sakya, Kagyu, Bon or Jonang. All these are nothing more than labels. The various Buddhas and attendant deities, protectors are practices to help the practitioner along. All these labeling, worldly concerns and what nots are mentioned in the Buddha's teachings. All that is going on are what the Buddha has cautioned on the pitfalls of the practice.