Look at it the other way: China has a big IT ambition and it surely doesn't want to get locked out of its own PCs, so it would try to push their CA into BIOSes

Look at it the other way: China has a big IT ambition and it surely doesn't want to get locked out of its own PCs, so it would try to push their CA into BIOSes just to be a first class citizen if they'll try to build their own OS. But the fact that they have their CA in the BIOS would be unsettling for some.