Well Ruan, businesses operate mainly for profit, and whatever noble goals that these "educators" had in mind in the beginning eventually got put on the backburner after the cash started to flow in. When there is no adequate system that monitors financial and economic problems caused by human nature you will have wild wild west situations like what's happening in China. Unfortunately it is also a fact that generally speaking people don't learn from their mistakes, and this business calling itself a "school" hasn't made any reparations whatsoever to the teachers it has mistreated nor has it changed its own behavior.

You'd best be careful defending places like these, there is no real reason for you to talk good about a business you're no longer at. It is very rare anywhere in the world for anyone to have such a positive experience that they would somehow relate it to the company that they had worked at. It should be the people or the students whom you had a good time interacting with, and you haven't really said anything about that. Are you sure you really had a positive experience there?