Name related or not, I have the impression they are not very practical - for whatever they meant to be used.
The damascus steel looks nice, but else... Without a finger guard it can be very dangerous, especially in a stabbing move. If you hit something hard, the hand may slip forward over the blade - not good.
And as someone mentioned in the comment, I also assume its rather difficult to sharpen such blades. I tried sharpen a blade similar to a Roman Gladius and that was not easy, with less curves than this kind of knife.
Yeah, the green bit in the handle looks weird... but that can be helped, I guess.