That is likely the case. Unsurprisingly, even well intentioned recruiters for good schools in China lack the ability to distinguish between qualified and suspect candidates from overseas. I know of one university college with astonishing success at attracting competent FTs; they use an ex-teacher, now back in her home country to screen resumes and initiate Skype interviews.

I've been in China for over ten years and speak the language. But I cannot recognize Chinese citizens who are 'a little off', while my Chinese friends can spot them right away. FAOs have similar problems recognizing foreign candidates who are going to be trouble.

And yes, Chinese agency recruiters and many private schools could care less as long as their monkeys can dance.