Definetely it's bad! THe banning stops growing of the usuage of Bitcoin! It's gonna be a bid diadvantage to Bitcoin!
Bitcoin is worldwide used almost in all countries so I think its development cant be stopped. I agree it development will be a bit affected if too many countries banned it but now bitcoin is a need of the world. The system of world cant run properly without a digital currency because the online payments cant be done with physical currency and I think in all digital currencies bitcoin is the best and the easiest to use.
Honestly, who is really bothered about China now anyway? Whatever they plan on doing with their life and their country is really no one's business and I am even sure the citizens know better than to just take in everything that the governments throw at them as they are some pretty smart people. This is a global thing and bitcoin is always going to keep doing well as it is doing now without China.