The "idea" of Bitcoin is great but there are "holes". The Mt Gox debacle is a good example. The value of Bitcoin dropped by half when that happened and it was only a few years ago when Bitcoin dropped to around a single dollar
It was only a bit over 3 years ago that bitcoin reached dollar parity for the first time on its way up from zero.
Blaming bitcoin for Gox is like blaming the the US Treasury because the local petrol station didn't lock it's safe and was robbed. The price of bitcoin isn't the most important thing as an indicator of success, the ecosystem and functionality is.
I agree, you can't blame a currency for the problems of a company, it's nonsense, if this happened in the dollar nobody would be blinking an eye and it actually happens on a regular basis with the dollar.