"show that wheat what your fuckin made of"
Still, you could probably develop a decent fighting style out of this weapon (not from the video). Maybe not with the Scythe as it is commonly known but an adaption to it. The problem I think of is that it was a farmer tool, they were probably self made and/or of poor quality most of the time. I could imagine that a balanced, light scythe could be a deadly weapon, just like a spear, halberd, naginata.
(Poorly drawn by me ;P)
The actual Sickle could be used for blocking as well. Could be inverted.
I could be horribly wrong though. Swords and spears are probably still way more effective