I am watching that video right now haha
From what I saw when he was paying that last part, I think I have some ideas for the wind streams.. One of them is the same someone pointed out in the video: there could be a second area with stronger wind near the bottom of each stream, to make it harder to hit the ground while on the stream. The other thing I think would make it more manageable would be to give a limit to the speed it adds vertically, so it doesn't send your character flying up