Interesting thread by David Fishman. There are more examples/threads in the replies, but they seem to be pushed by Sinophobes and Anti-China folks, so I'm not linking them.
David is a great person to follow on Twitter, btw. His threads on renewable energy in China are fascinating to read.
On this topic, it's sad. I don't think the government needs to be doing this. Domes, minarets, the green color scheme are all beautiful and as Chinese as anything else. As is laid out in the thread, and lied about by all others, this hasn't impacted prayers and celebrations and actual Muslim existence in China. So, it's only purpose seems to be to make the buildings "look" more Chinese which you really don't need to do. If skyscrapers and glass buildings can be Chinese, then so can domes and minarets.
I know nothing about the politics of this topic but based on his photos, I agree that the Meiba mosque's original domes and minarets were beautiful and I love their colors and simplicity. The designs that replaced them look ugly, quite frankly, and don't match the aesthetic of the remaining original walls. But it's subjective I guess