The crossguards are meant to catch an enemy's sword and protect your hands — something this lightsaber would be unable to do unless it's made of some mythical ******** supermaterial that nobody's heard of because it's in a Star Wars book nobody's read. An enemy's energy blade would, in all likelihood, slice right through the base of the crossguard and end your lightsaber party pretty quickly.
A lightsaber crossguard is also really dangerous to the person holding it. Don't just take my word for it; The Washington Post weighed in on the issue after I called out the design on Twitter, and asked master bladesmith Kevin Cashen about it. "That would be very bad to have around your hand," Cashen tells the Post. "That hilt would just take you apart if you started to do a lot of complex spinning."
"You'd be in grave danger of searing yourself," Cashen says.
So after an argument about the lightsaber with The Verge's own Star Wars fanboy, Rich McCormick, I decided to take a break and get coffee next door. In the two minutes I stood in line, I came up with a better design.