It's pretty well known that there is some terrible software that comes out of the Chinese hardware shops. 99.9% of the time these are not malicious back doors. Instead they're debugging or QA frameworks that just get left in released software. There is zero process or control of the releases. They can certainly put a system together, but they can't write the software for shit.
Your comment is just another over-generalisation. You sum up the entire spectrum of Chinese companies with 'they'. Why do you think this makes sense and yet you'd naturally spot that it would be plain dumb to summarise and generalise American companies in this way?
No. I generalized Chinese hardware shops. Not all Chinese companies. Having spent years working with software, and sometimes rewriting it, from said companies I'm perfectly content with the generalization I've made.