This sort of bureacratic micromanagement of Chinese Christian lives has been occurring for centuries, even during the imperial dynasties.
Anti-Christianity is deeply wedded to most extremist (whether right-wing or left-wing) manifestations of Chinese nationalism, similar to Hindutva in India. Partially this is due to the development of political theory in China: the Dragon Throne and its incumbent is typically attributed quasi-divine status (not unlike the pre-Christian Roman Emperor), and the notion of allegiance to another deity (i.e. Christians and Christ) was viewed as seditious.
Even now with a communist government, little has changed in that respect: the head of state and the state itself are often perceived to be sacrosanct. What has changed is that it’s far more difficult now to evade Chinese government monitoring. In the past it was customary for Chinese Christians to relocate to concessions, that is, cities leased to (and under the extraterritorial governance of) foreign European powers: Harbin to Russia, Hong Kong to the British, and everyone had a slice in Tianjin (whence my family derives). Now, the best that one can do is to keep one’s head down, fast, pray and offer one’s suffering to Christ.