Does ‘incendiary cloud’ move directly away from you?

@trace400Does ‘incendiary cloud’ move directly away from you, or in a direction you choose? Check out the final sentence of the spell for the answer.

— Jeremy Crawford (@JeremyECrawford) July 21, 2016

@trace400So it does both, then? But ‘directly away from you’ doesn’t give you much of a choice, does it? There’s a reason I asked. You choose its heading.

— Jeremy Crawford (@JeremyECrawford) August 2, 2016