Unfortunately the world is filled with people who lay on others the responsibility to "explain complex things in a simple way" or else be labelled bad communicators. Those are mostly people whose minds can't handle complexity and who are engaging in cognitive dissonance reduction. They don't like to think of themselves as dumb, so they'd rather think of their opposites as bad communicators.
But there is no such thing as a "complex thing explained simply". There are only the kinds of explanations that H. L. Mencken speaks of when he says:
"Explanations exist; they have existed for all time; there is always a well-known solution to every human problem — neat, plausible, and wrong." [1]
