Unfortunately, “niceness” is incompatible with most of Buddhism. That meant that most of Buddhism was collateral damage when the establishment suppressed any possible manifestations of Trungpa-like-ness.
http://meaningness.wordpress.com/2011/06/07/the-crumbling-buddhist-consensus-overview/
Word. I find that many self-defined Buddhists practice this "niceness" form of Buddhism, which is incompatible with practice. Niceness affirms everyone, whereas Buddhism deconstructs everyone. Hence why niceness and practice are incompatible.
I like this quote:

http://dharmafarer.org/wordpress/wp-content/uploads/2010/02/31.7-Sexuality-piya.pdf
Edit:
I'm just leaving this link here (Theravadin Tantra): http://oeith.co.uk/2014/06/09/my-jungian-shadow-exposed-by-a-shamanistic-theravadan-monk/
Trungpa himself said that Theravadin practitioners often get into Vajrayana territory in Southeast Asia. Once again confirming that yanas are not sects.