it is a valid point, since they didn't ban mining, or hardware manufacturing related to cryptos, could the chinese have trolled everyone 
They are powerless and their threats and ban on exchanges have been reduced to nothing. I don't think any government will be able to successfully ban bitcoin without shutting the internet and so i don't think they could have trolled anyone.
yes they cant do that cause only internet can stop bitcoin to progress but as long that there is a internet no one can ever stop for it and as far as i know that china ban this but not as totally and they dont intention to ban this just to stop bitcoin cause even though they can back bitcoin for again.