Don't expect any kind of discussion about issues here. You will be told you are not playing the game right, or you haven't played enough games, or that you are wrong and (as always) all style of decks are viable. Bonus points if you are directed to the salt thread
Lol this is so the truth here in this site nowadays. Bonus points indeed.
Every reply so far except you two cite some examples and some provided sources. Ironic, because the only lack of discussion is this.
As said already, murloc decks, zoo, and secret hunter are aggressive and doing more than fine. It's just that aggro is a little more spread out than the days of tunnel trog shaman, heal zoo, odd rogue and pally, etc, when certain aggro decks ruled their respective metas. Right now, boom and pocket galaxy rule the meta, so they're a lot more salient when people reflect on the meta. And they're not wrong, but it's easy to see past the aggro decks that are doing fine and in fact make it very difficult for mage decks to play pocket galaxy, which is a card that shines against slower decks, not aggro.