I can't but help think of his reckless behavior causing suffering. I won't go into. He had that crazy wisdom and tried to shake things up. He had a military unit in Shambhala. Watch the movie Crazy Wisdom. I think they cut out some of the more negative consequences in the release version.
He was among the few survivors who got out, lived a challenging life, with a terrible car accident. He founded Shambhala which is an amazing thing in itself. Founding a sect of American Buddhism or western Buddhism is no small feat. Lots of good in his life.
I agree with bell hooks that the good doesn't erase the negative in terms of using the word love. There has been a lot of abuse by Buddhist teachers. After the Weinstein effect, many people are complaining about abuses of power. I am not immune to sexual misconduct. America gobbled up Trungpa's teachings because Buddhism was new to America. Nevertheless I am reading his book with my critical faculties alive.