o.0 everybody knows that a lightsaber is really just the force amplifyed through a power crystal. it said this in one of the books i think. and everybodys lightsaber is so fine tuned to thier own force, which is why it is extremely difficult to deflect other jedis lightsabers with your force, like in the cinematic.
This is an explanation I can actually accept. When you try to add real world science behind a weapon that goes against every law of physics it becomes ridiculous. However when you explain it using the rules of that universe it is acceptable.
Just like how the Force is cool when Yoda Explains it in Empire but sounds bad when Qui Gon explains it in the Phantom Meance.