They are just saying BTC is dead because they want to see the price of bitcoins at $1 again so they could buy more. But guess what? it is not gonna happen again as the time for bitcoins for trial and error was already done. This time is on the serious stage of bitcoins for the different sectors of the community to adopt.
People are not stupid, they are also living in this world. If we save bitcoins, so its mean we know bitcoin is a big currency so we save it or invest it. Otherwise someone say that it will be dead or is dead. that's all are want to drop the bitcoins and nothing else.