Centuries ago, men attempted to fly by putting wings on their arms and flapping really hard. Logically, in their minds, it should have worked. Birds fly. Birds have wings. Therefore, having wings should mean man will fly.
The gentlemen, puffed with pride, failed every time. Had they examined the nature of flight, as opposed to the nature of birds, they would have realized the concept of lift (as Bernoulli did). One must examine the physics of the flight rather than putting feathers on one's arms in imitation of birds. The descendants of these birdmen are with us today. In the gaming industry, they represent some of the highest gaming executives and esteemed analysts.
Nintendo is flying high. Rather than examine the nature of this flight, the birdmen are mesmerized by the feathers. The analysts and executives do not see the concepts of disruption and don't even understand the Blue Ocean principles (though they think they do). The feathers they see on Nintendo's ascent are casual games. Therefore, they surmise, if they make casual games then they will be flying high with Nintendo.