What riverman said was my first thought as well--that you seem to barely come off the floor. I imagine you could raise your release point relative to defenders simply by using your legs more. But it sounds like more lift and a more vertical release would be the opposite of what you're looking to accomplish (the Curry-style quick release). It looks/sounds like you're actually trying to buck conventional shooting form wisdom, which is fine, as long as you have a coach that is flexible enough to permit it.
I'd like to see a similar video where you have a partner feeding you on every shot, so we can see how your shot works on the spot up rather than just off the bounce.