Blindfolded yoyoing is not only about skill but also a higher understanding of the way a trick is constructed. When you do a trick pay attention to your individual hand movements and distance between hands when playing. Though I am blindfolded I can still see the trick in my mind so much that I visualize the trick and gauge an approximation as to where the counterweight will land. I do this by controlling the momentum I give the counterweight and yoyo to provide consistent results.
I suggest watching the video a couple times again, paying attention to each hand on separate viewings. Notice the automatic anticipation of each new move.
Do not let your eyes become a crutch. Yoyoing is not only about sight but also about feel. Your eyes should be used to calibrate your moves not define them.