$$$$Why are they chopping the game?
I'm guessing they're trying to bring over the VNs as luxury good thing (a low amount of people buy them, but at a very high price), but since they can't tempt people by using all sorts of physical pre-order/retailer goodies due of selling the game digitally, they feel like they'd try and it by offering cut out content instead.
And trying to eat their cake too by releasing a gimped cheaper version as well.