So I have a couple of counter points to Garnett and co. criticisms of the PS4 presser.
1. The main reason Sony hasn't changed the controller through 3, now 4, cycles is that a lot of people like the controller the way it is. Why piss them off by doing what Microsoft has done? It's not like they haven't tried a 360 controller to know whether they like it or not.
2. Sony's stock actually rose after the press conference.
3. I think you might be confusing the press conference Sony just had with an E3 press conference. I don't think that event was just for gamers. The way it was structured it felt like it was aimed as much at developers and publishers as it was gamers.
4. Speaking of my last point Sony still has GDC and E3 to talk about the PS4. By getting ahead of those events it allows developers to freely talk about the games they're currently working on for the next generation while also giving Sony the time to say, "hey that shit we were talking about at our event listen to these developers tell you how awesome it is and that it actually works." Also you know Sony will mention all that non gaming stuff at E3.