Those people who are saying that bitcoin is dead are the ones who wants to destroy people's belief with bitcoin.
And they are also don't trust bitcoin because they are spreading wrong news and it is not even a news, they just want to do something.
That can make the people do panic selling or completely dump bitcoin.
That people who say bitcoin is dead also want the price bitcoin become down and maybe they have hidden agenda by doing that. But i'm sure all bitcoin user are smart and never think bitcoin is dead, even by looking at the price right now, bitcoin is fine.
Somehow yes they are doing something to make the people panic sell so that the supply of bitcoin in market will be more again.
And once they succeed on scaring the people, they are going to buy now a lot of it and then hold again and just wait for the price increase.
They are the manipulators of bitcoins price.