People just dont understand Nintendo's business strategy. Nintendo creates software, that while on the surface people may ridicule, that ridicule paves the way for them to conrtol it (have a monopoly) if it turns into a hit. The ridicule is a barrier that is set up to prevent others from entering. A perfect example of this is Smash Bros. Instead of making another Virtua Figher or Street Fighter clone, they created a fun quirkly little game that no third party dev would even think of making because it looked "gay".
Now since Smash became a hit, Sony who built their marketing on "mature" tried to copy it with PASBR and it exploded in thier face. So, no one can make a successful Mario Kart or Smash clone. BAM, monoply money printed. If Nintendo went down the "I'm so cool" route with their software, that would be easy to copy, and then thier monoply would be broken quickly. Look at Virtua Fighter, it is essentially dead while VF clones like Dead or Alive are still selling and thriving.
EDIT Splatoon is clearly a continuation of this strategy.
