I see the appeal, but personally, the controls, gameplay and camera are the most important elements to me when I'm playing a game. Heck, I still play Paper Mario 64.
That said, it's too bad that the graphics and visuals of these games are... unmatched. I could easily get into the bikini zombie slaying genre, but only if it was also fun.
Incidently, it is very difficult to write "I would play this if the gameplay were good" without it sounding like something else is implied with this game. It's kinda annoying when trying to discuss this game's primary flaws.
EDIT: I did hear, however, that the game has very good motion sensing-feedback. Heck, I heard that you could win this game by closing your eyes and shaking the wii-mote up and down. But considering that a big problem with wii-titles is a lack of responsiveness in the motion controls, a game in the opposite extreme is not a bad thing.