Looks like we have a problem with the “third lesson” deleted scene. Rey running across the landscape is clearly a temp effect and looks very unconvincing. Also, the final shot of the scene features a totally motionless ocean with no waves.
I’m betting someone around here could tackle the second of these, and perhaps that would be good enough to make it usable.
My thought on the first issue is that you could add some blur to hide the unfinished effects and make it sort of like the force dash in TPM. Of course I say this without any certainty that this could be feasibly achieved.