Long term, no. But we could be travelling a pretty rocky road for the coming weeks and months. Rolling out BCH as an opt-in airdrop was much smarter than the Bitcoin Unlimited route. Now instead of trying to manipulate public opinion, BCH's backers (like Bitmain) can manipulate the markets by pumping the price (and/or dumping BTC's price). And they can manipulate the hash rate, too. It's gonna be a fun few months. Then we have the November fork, too!
I'm wondering is it really possible? I mean how much he loses per day if the trading volume of Bitcoin Cash reaches 2 billion sometimes? Not that I'm advocating BCH, but I think it's not only him who is responsible for the pump.