I know this is not a perfect example but isn't it the same country blocked lots of other popular websites?
I haven't seen such websites "collapse" because chain blocked them
Just to show you how China is ridiculously full of censorship, check out how many
websites and apps they have blocked so far

01. Gmail
02. Dropbox
03. Google Apps (Drive, Docs, Calendar, Maps etc.)
04. Microsoft OneDrive
05. Slack
06. Google Play (i.e. no downloading Android apps)
07. Hootsuite
08. Facebook
09. Instagram
10. Twitter
11. Snapchat
12. Pinterest
13. Quora
14. Tumblr
15. Reddit
16. AO3
17. YouTube
18. DailyMotion
19. Vimeo
20. Twitch
21. Periscope
22. Pandora
23. Spotify
24. Soundcloud
25. New York Times
26. BBC
27. Financial Times
29. Wall Street Journal
30. Reuters
31. CNN
32. TIME
33. Google (text and voice)
34. Amazon (Alexa)
35. Wikipedia
36. DuckDuckGo
37. WhatsApp
38. Facebook Messenger
39. Telegram
40. Line
41. Signal
42. KaKao Talk (Korean)
43. Medium
44. Blogspot
45. Skype (although it sometimes works, it’s not reliable)
46. Google Hangouts
47. Viber
48. Porn websites
49. VPN websites
50. Politically sensitive sites
So it's just another day in China.
51. Bitcointalk since 2013.
Besides, there is a bit difference between the block OP mentioned and you listed.
When users enter those words in your list on chinese serching engines, there are still results. China gov block the access when clicking the result.
But this time, no result about those exchanges would show up.
BTW: Funny thing is, when entering coinbase on baidu, there are still results and valid address returned.