Supposed to be, yes. Damned difficult when your new console isn't a powerhouse or flying off the shelves. Even with the Wii doing so successfully, where is Zack and Wiki 2? It's safer for Nintendo to release a 2D Mario because it sells. And it sells through the roof, normally. Nintendo may not be in any big trouble right now, but they are not doing well. Not as well as they did the last time they did this, which is why we're seeing them play it safe.
I'd love new IPs and sequels to games like Mother and F-Zero. I also understand that until Nintendo is confident that the system sellers are out there, they will continue to be conservative. We got Punch-Out!! last gen, remember? And it rocked. And a Wario sidescroller. And DKC Returns.
Now we just need Mother Reborn and I'll be happy.