I'm not convinced.

All that I know about Pope Francis suggests to me that he would speak out, if he thought it would help.

All that I know about about modern China suggests to me that, while they are sensitive to criticism, they are not sensitive to criticism in quite the same manner as other countries and are, in fact, generally responsive to criticism by becoming more belligerent and hostile.

So perhaps Francis thinks that not only would speaking out not help, it might lead to active harm.

I'm also not convinced that the quote from Bonhoeffer is all that apropos here: Bonhoeffer was in the atrocity, as it happened and was actually faced with the choice of becoming part of it or of opposing it... And he ultimately opposed it and became one of the Nazi's last victims. That's not the position that Francis and the.Vatican find themselves in, at this point. They are on the outside.