I'm going to have to disagree with you here.
"Horror" as a genre is about more than the slasher movie and its ilk. It used to be something terribly alive; think of Nosferatu, Phantom of the Opera, or The Cabinet of Doctor Calgari. Then think of Dracula and Frankenstein. Think of the transition to psychological drama, camp, gore and sexuality in the colour films that followed: The Roger Corman Poe adaptations, the rise of Hammer Horror (whose earlier work ought to be taken more seriously than it is), Polanski's Rosemary's baby, The Exorcist (obviously), Witchfinder General, Night of the Living Dead. Every single one of these films added something new to Horror. Every one. Yes, Hammer got stuck in a rut and deteriorated into camp, but you know what happened then? Ultraviolence and shocker. Texas chainsaw massacre, and, yes, the remarkably novel (though hard to think of it that way now) Halloween. And Horror burned brightly again for, like, three whole days.
Ask yourself this: if we were still making camp hammer horror films, would you be happy?
So why should you be happy that we moved on one step and then got stuck in a permanent rut? When you're making a parody movie of a parody movie (I'm thinking of "Scary Movie" of course), you know that the thing has died.
Look, I understand the argument from film censorship, but I could argue cheap ugly porn-romance films kept sexuality on screen or Guy Ritchie films kept bad language from hays code restrictions and sure, it's true. But that's not really cinema.
I'm not saying there's nothing in Slasher any more, it could just need a subversion here, a novel idea there. But the genre is horribly stale right now, and I don't blame a critic for dismissing better executions of the work when that's all it is. Just a slicker presentation of the same thing. That is artistic death. There are some good horror films around (Cronenberg might come back to the medium, and I thought Let The Right One In was terrific), but if you mean to say slasher's in good shape, then no. Slasher is not.