Neither! However, I've been romping around the track for a very long time watching guys like you crash over and over until I can smell a crash coming long before it happens. Most crashes are initiated two or three steps before the actual getoff and yours was no exception.
Let me give you an example. Watching your video and listening to the continuous opening and closing of the throttle throughout the corners it was only a matter of time until your front tire gave up traction. Poor throttle application will always (ALWAYS) put you on your head eventually as the lean angle increases. Listen to your video, you opened the throttle and quickly slammed it shut just before the tire let go. The dust theory was an excuse, not the cause.
You my friend, simply ran out of talent when you needed it most! Don't feel bad, we've all done it.
When a rider makes lame excuses for a crash he learns little and subject to making the same mistakes again.