In general the article writer has a point, but I would broaden his view a bit by saying that Ninty needs to generally diversify its portfolio to cater to the "mature" audience (for what little "mature" means now). If they want to survive in the traditional console market after next gen then they absolutely have to publish more titles that are geared towards "mature gaming" so that their kiddie stigma goes away. Bayonetta 2 and Devil's Third are a good start, they just need more titles like those in the pipeline.
NNID: TheCCluc