They know how to introduce new, difficult, and sensitive truths to unfamiliar audiences. They know to carefully and deliberately define their terms; to remove unnecessary stumbling blocks.
This is not the behavior of teachers who genuinely *want* to be understood. This is the appalling and manipulative behavior of teachers who want unquestioning submission & obedience
This is the behavior of teachers who despise their hearers, and want to beat them over the head with their own version of "the truth."
And that is the BEST that can be said of these teachers, even assuming that they have been genuinely misunderstood.