Just plain greed. I've seen lots of technical analysts claim crypto to be pure and mostly without manipulation. The bankers and financial goons are trying to make a buck on the very first application of blockchain tech which would eventually kill them.
They fought Bitcoin. Now they are trying to get on bed with it and make a buck. A volatile market like crypto doesn't have much use of futures. This is what's going to get people burnt. Blockchain is a beast. Trying to manipulate it won't go well.