I started DIT on Tuesday and currently averaging the minimum 5 per day. The order appears random, but it makes sense once you start. A lot of times the random next video is there because it expands on a topic in the last lecture or in preparation for the next lecture. It's not random for the sake of being random.
Of course I'm also over 1000 questions into the USMLE Weapon Qbank (the one that was free with DIT, switching to UWorld on Monday) and already did a pass through FA, so your millage may vary.