DMR and BR have never had recoil. I'm not sure how saying things change has any merit. Change for the Halo franchise these days seems to be almost always go in a direction opposed to the traditional Halo formula that I and many others like. The current crowning achievement of 343 with Reach is implementing no bloom; something that (somewhat) brings the game back to the Halo mp of old.
My point is, I have heard the same exact responses being used before about how things need to be tried and it won't be a big deal and how people need to stop worrying, and then we get Reach and the developers refuse to listen to the community during the beta, the playlist management has been atrocious, etc. Nearly every small piece of news about Halo 4 has been disappointing thus far, while playlist management has been disappointing for about 5 years now. I'd be more apt to believe in positive changes, if I ever saw any ongoing commitment to the exiting franchise outside of $15 DLC, or if I saw anything that looked promising for the future. All I can give is my opinion and what I see, if people disagree with it, so be it.
That's completely false, and as an aside, most people here are too afraid to post anything negative about Halo 4, but I am most certainly not the only one who holds my views.