The problem is that deregulated systems take a long time to evolve and settle.BTCs main value to me is to see what a deregulated system might look like. But with mtg "owning" 80% of the market is is hard to see that it actually is functionally deregulated at this point. My assumption is that it wont work very well but it is too soon to call imho.
These "shocks" create the opportunity for better, more reliable exchanges to emerge.
That said, better exchanges or not, at the end of the day, BTC is badly flawed. Better exchanges may solve the price bouncing issues, but it won't solve the adoption and legal issues.