Maybe you haven't noticed but nobody cares about good news.
When some obscure Chinese blog posts an unconfirmed story how a random Chinese bank will ban Bitcoin everybody totally freaks out and dumps everything they can.
If that same Chinese bank says Bitcoin is no problem the same people are like who cares. Hell, they'll even dump some more most likely.

Any news lately is reason to dump. It's a new thing in the Bitcoin world that started this year. And people are so used to doing this now that it's hard to change this again.
We would need months of non stop amazing news. But that's not gonna happen. Every 2 weeks there is something new that makes the price goes down. So all these idiot traders simply say "good news or bad news, i'm not gonna wait and see, i'll just dump right away".