Mining is a business, and right now redirecting your hash power to BCH is a loss, because the difficulty is huge while the reward is small. When BCH difficulty will drop, some hashpower/BCH_price equilibrium will be established. So, it doesn't mean that BCH is already dead, but still it's funny how miners, who were crying for big blocks, are refusing to switch to Bitmaincoin, because they have no confidence in its price. Hope it will be a lesson for everyone who didn't realize that Bitcoin's direction is decided by economic majority and not some pure hashrate.