I think the world should form some intellectual commitee of scientists and philosophers to study the effect of religious practices on one's own life and the society he is living in. States should accordingly set the level of religious freedom the massess can enjoy.
Anyway its china's internal matter to determine whats good for its citizens.
Religious practices are not always a security threat, but the bad practices should nevertheless be vanished to improve the quality of human life.
Why should a non muslim majority suffer a teacher's weekness due to fasting or his time out for the prayer during work?
But the employees should be given optional vacation to help them fast.
A very personal opinion.