Notice how the lightsaber sputters, crackles, and flickers as the character turns it on. As io9 notes, that's a sign of shoddy workmanship. But don't just look at it, listen to it. The sound of a lightsaber turning on is always smooth around the edges, but this lightsaber sounds dirty, and full of static.
Stephen Colbert Explains Why The Controversial New 'Star Wars' Lightsaber Is 'Perfect'