Interestingly, Zack and Wiki highlights the incompetence of many 3rd parties with the casual audience on Wii.
Z&W has nothing to do with a casual game and has never had any chance of appealing to a casual market. This should be obvious to anyone who's played it, it's 100% hardcore, to the extent the graphics really do the game a disservice. Capcom really was off their head if they wanted this to appeal to Wii's main audience, and judging by those Japanese, everybody's having a great time, videos, they really hoped it would do well in this market when it clearly never had a chance.
It also highlights how most 3rd parties don't get, and can't create, what Nintendo does with Wii Sports, Brain Training etc. It's just not what they do.