Since the data are on the blockchain, you can read it without a memo client. I believe they would be going after BCH blockchain if anything. Are you a BTC shill? :)
It might also get Chinese people interested in BCH (for reasons besides speculation) and in other censorship resistant applications (such as keyport.cash).
I don't know, to me it seems people are overrating the Barbara Streisand effect. Sure, sometimes it works, other times the bad guys manage to quench stuff
Here in particular we would be gambling the future of BCH that it will work. Also, if the chinese get interested in BCH as censorship resistor the attack on it will be stronger