Bitcoin detractors will always have a negative image/outlook on bitcoin.  Events like this (bitfinex hacking) and the subsequent dumps, they just use as ammo.

Bitcoiners for the most part understand what happens when things like this occur and the reasons for the dumpage. Their image of bitcoin doesn't change, at least not significantly because of the dump.

Those who had their bitcoin/money on bitfinex and were affected directly by all this... well, I imagine that's a different story as to what their image of bitcoin would be.