Apps should not be banned they should put just a note "hey if you use this app you risk being monitored by the gov of China,Usa etc"
Well, there are warnings like that but as @Upgrade00 says it, they don't care since they doesn't know how valuable that information. They doesn't care that there are people are even dance in front of their cameras nude. Even though it is reported that TikTok is being used by China to snoop some information, it didn't stop.