It is most unusual for the Chinese to criticise any Govt organisation or personage unless there is some top official sanction to do so. And there has to be some internal rationale for the same. Xi has gone on a drive to rid 'corruption' in high places in China. Could it be that whoever is behind the Bank of China scam is someone who is so big that even Xi is uncomfortable to confront? And is the Chinese TV acting as the cat'spaw for Xi, wherein Xi is building up the public pressure before guillotining the person behind the scam?