I understand your concern, but on the other hand, CMC didn´t crash the market but peoples sheep mentality. It´s all a big self fulfilling prophecy - markets go down, because people think it will go down - the opposite being true as well. Also it´s a very valid point they make and a good choice longterm to pull these exchanges out of their calculation. Imagine how powerful the owners of CMC now feel, when they see all these post that say that they have crashed the market. It´s generally very interesting to watch, how powerful these services seem to be. Take Coinbase for example. Did they manipulate the market with their decision to add BCH or their (momentary) refusal of Ripple? Again a self fulfilling prophecy! Coinbase is just as powerful as people make them in believing that they are!