RE6 is a huge game with a massive budget. it's true, if they want to make half of what they spent creating it back - they have to give it more widespread appeal. action games and zombies are in right now. as i've said, i work in a video game store so i witness first hand what sells and what doesn't. it's not that traditional surv horror doesn't sell at all, it just doesn't sell AS well. you can tell that capcom really emptied the bank with RE6, and they want more than just us old skool fans playing it.
Gaming has changed so much so fast. What's happened with Survival Horror is kind-of like what happened to RPGs. Japanese RPGs used to be the rage, now we're lucky if we see a half-decent one come out for anything other than DS. Western RPGs like Skyrim and Mass Effect have stolen the throne. in fact, western gaming in general has taken the world by a landslide. if you told me this would happen a decade ago i'd laugh at you - but it's true. and as sad as it is to say, i don't think Resident Evil would be half as popular as it is today if it weren't for the changes made in 4.
if you miss the traditional survival horror style, i say move on to other games. i don't mean to sound bitchy when i say that, it's just there are still games out there and being released that will cater to your tastes: Amnesia, Downpour, Deadly Premonition (lol) there's even a new fatal frame for 3DS in the works!
i truly believe RE6 is going to be a fan-effing-tastic game. resident evil is an amazing series, and i say if they wanna take Call of Duty on, POWER TO THEM! lol. They have my full support.