While I do believe the Wii U's game lineup came out rather weak. (seems to be an increasing trend) I highly doubt it would spell doom for nintendo's home console market. Eventually they'll have enough good games released to make it a worthwhile library to choose from, along the same lines as the 3DS. I believe most of the Nintendo doom prophecies comes from parties which only follow the product for the initial release then they write it off and move on to other things, therefore not noticing the development and subsequent releases of games and the likes.