If the Chinese can stop another bubble from happening, I'm all for it. Bubbles always hurt the underlying economy and benefit only a lucky few. The OP sounds like he thinks that the idea of stopping a bubble is something to worry about, but I disagree. Stability is better for Bitcoin and the underlying economy.
With that said, I seriously that three Chinese exchanges can control the market to that extreme. I hope I'm wrong. Bubbles are never good because they always burst.
We will have "bubbles" until we reach the point of relative stability. There's no getting to stability without them. It's part of the necessary growth pattern.