What Hem said, generously giving half a star for crediting the original author plus attempting to create some sort of level demonstrating the key idea, but the level itself is an utter failure and not enough effort was given to understand what exactly that key idea is.
On top of that, if a demonstration was the main goal here, a long hallway that need to be traversed over and over again that serves no purpose is just annoying.
Yes this is broken, but no it has nothing to do with the original level this is taken from being suboptimal. It simply lacks the depth and the checks formed from the management of the other movables. If you had bothered to exit touch on the original, the holes in this level would become glaringly obvious. Not impressed in the slightest here.
Generously gave you half a star more for crediting the person this was borrowed from, but it really adds no value to the original.
Completion Difficulty