When a company who has been known for inflating their purchase rates overestimates their sales, it is a failure? Sounds like they made plenty of sales to me, sonny, and the Wii U was always offered at a rather low price, so it is foolish for you to assume that they were dumping their entirety into it.
Nintendo is wiping these tears that you keep talking about with enormous wads of cash, and denying that is simply foolish.