if you think jihan owns the whole 9time of posting) 67% nay sayer/abstainers.. then maybe its time you done some research
No one claims that Jihan directly controls 70% of the hashrate. Rather the claim is that 70% of the hashrate is using Bitmain's hardware. With this vulnerability, they (or anyone who can MITM or DNS hijack) can stop all of that hashrate from mining.