Title is self explainatory but this isn't just about a bad Wii U launch. This is about an on-going trend now for like 10 years. Nintendo simply isn't able to support two hardware platforms simultaneously.
They couldn't even support the Wii properly down the stretch even though it was their best selling console ever, it's last two years aren't any better than the GameCube, probably worse actually. The 3DS went through some droughts also.
Third parties are never going to support Nintendo in a big way (Western devs especially).
Selling Rare and not replacing their software was a huge mistake also. Rare + Factor 5 + Left Field were like 1/2 the N64's output from Nintendo and Nintendo simply just cleaned house. Rare basically doubled Nintendo's software output for the N64 days.
When Nintendo makes a lot of 3DS content, the Wii/Wii U suffer. When they focus more on Wii U, they'll have to cut back on their 3DS output. Droughts are simply inevitable.













