Think the point is that the collapse of one large bitcoin exchange did not (yet) trigger the collapse of other exchanges. Like the domino effect in 08' causing many banks get into trouble after Lehman's bankruptcy, will not happen with Bitcoin. Let mtGox's failure be a lesson that will not be forgotten and the bitcoin system will be stronger in the long run. Sorry for people that lost BTC on mtGox, I lost some 80 BTC myself.