Nintendo wants mature content to attract mature gamers but not at the cost of their family and casual audience. Nintendo wants and needs games that appeal to every age group without horrifically offending any. A release of a game that offends a large religious group is very damaging.
Nintendo is going to support plenty of mature games. Geist and Eternal Darkness in the past has shown that Nintendo has no problems with releasing mature and even controversial games.
Nintendo wants to sell a console with a mature game for dad, a casual game for mom and a family friendly game for the kids. They want to and need to have this mixture, but if dads mature game offends mom then Nintendo loses a sale. Nintendo does not want to alienate consumers, they want to push the boundaries but not to far.
-JC7
"In God We Trust - In Games We Play " - Joel Reimer
