Sideshow is all about capitalizing on DAT STAR WARS HYPE. Right now, people will buy anything and Hasbro, Sideshow, Hot Toys, etc. know it. Whether it's a video game repaint, a "Chocolate Stormtrooper" or a needless, thrown together "reissue". Vader? Shoot, people are going to be on that like flies on dog ****.
Some average Joe is looking for a 1/6 Star Wars doll, they see this, it's going to be enticing to them. Hell, maybe they get it confused with the Hot Toys version since they're both on there for the same price and buy it. Sideshow isn't dumb. Ain't about the craft anymore, it's about those dollar signs. Can't blame them, it's business. Hot Toys is going to do the same BS when they get long in the tooth and have all these tools and figures at their disposal. Hell, they already do lame repaints and reissues.