Haha no not in general, but at this point Coinbase has survived some pretty severe market swings, so if you ask me with no additional info (of which I have basically none on Coinbase) I'd assume they at least have some institutional awareness that a 90% drop in all the coins they offer is not perceived to be an "INF sigma" event. (Which it probably was perceived as for a vast number of the know-nothing ICO schemes)