Just to play devil's advocate here, it's entirely possible there's some contractual reasons certain clubs get removed, given the number of trademarked products, etc featured in the game. No doubt there's complicated contracts with brands or some entities about licensing the TM, Callaway, etc branding and product names. When and what exactly occurs is probably not entirely at WGT's independent control. Eg. Nike dropping golf.
Or, yes, it could just be ineptitude. But just sayin' there may well be reasons that are not immediately obvious or visible to the virtual golfer customer out there.
All I know is I'm gonna need a new driver and putter soon and I hope they bring out a cool one for me!