Commenting on something positively while not wanting to work at such a place yourself is one of the many contradictions that my intelligence level would be really "too low" to grasp. Or maybe, is it perhaps your statement above that is somewhat "illogical"?

Not at all illogical. The right kind of person can have a great time as a training center teacher. I've met one before. I think they must like children very much and have lots of patience. If foreign teachers are happy teaching wherever or whatever in China, why shouldn't I be pleased for them? That doesn't mean I'm suited to or want to do that kind of job. In fact, I wouldn't be suited to teching kids.
No contradiction, at all, in my view. It seems to me you don't like to hear of happy training center teachers. Maybe you're a dog in the manger type of guy!