What a sadly misinformed dude! The worst bit is that even his understanding of his own tradition is incredibly misinformed. For example: he accuses the Vajrayana tradition of being syncretic and Hinduist yet overlooks that fact that in Thai Buddhism (he claims to follow the Thai forest tradition) there is an incredible amount of syncretism with Hindu traditions (especially the Ramayana) and local shamanic practices (talisman, protective tattos, yantras). But like any good sectarian he just overlooks the aberrations of his own tradition and merely focuses on the errors of the "others".
Okay, the lecture is obviously aimed at starry-eyed ignorant neophytes, but to then make such misinformed nonsense publicly available and brag that his poorly informed lectures have 600 hits on youtube? Sad!
My coach ordains yearly (last time was earlier this year). We talk Dhamma/Dharma all the time. He plays Thai monk chanting during a lot of our workouts and will spend a lot of time meditating on holy days (according to lunar calendar). At the same time, he has protection tattoos, has arranged for students to get protection tattoos, hands out protection bracelets (with sutta on them) to serious students, arranges for us to receive protection amulets from monks, and gives us chants to say daily - honoring the attributes of the Buddha (for those interested).
As you know in muay thai, the ram muay/wai kru depicts stories from the Ramayana. My coach has a picture of the demon who stole Rama's wife on his computer desktop to remind him that deluded beings are out there who try to harm innocents.
He has no problems with Mahayana practitioners. He thoroughly respects Chinese Buddhists and their approach to martial arts. He quotes a Thai Theravadan monk with a similar mindset to martial art training: "I protect myself so I can spread the Dhamma/Dharma, I protect innocents that they may be able to do good in their lives, I use the martial arts as a vehicle to spread Dharma/Dhamma, and to teach proper ethics on how we should treat each other". He's had me make copies for fliers that are from Vietnamese Mahayana monks that teach all aspects of Buddhism - Theravadan, Mahayanan, and Vajrayanan concepts are all represented.
As I said in another post, Buddha gives directions on navigating the path. Due to cultural backgrounds, certain formless entities will be favored. If anything, I think Vajrayana attempts to give some of those Hindu formless entities a Buddhist spin; but again, Vajrayana practitioners only go to refuge to enlightened beings.
The ultimate goal of course is liberation, but it is not a short path, the Dharma. Therefore, there are many instructions on how to navigate the myriad of kalpas until we can achieve liberation. Part of this is living in society, part of this is making peace with local formless beings. In reference to that Tricycle article posted earlier, it's hard to say what was "original canon"; especially given that particular Suttas are/were affected by Theravadan Abidhamma. Different teachings are going to apply more to different cultures. When one can renounce, then go for it. Until then, the Dharma/Dhamma; be it the Nikayas or the Mahayana sutras, offer many skillful means & lessons in order to navigate one's life in the right direction. Claiming one school to be the work of Mara because it does not advocate immediate renunciation and liberation is a poor example of Right Speech, imho.