Delaying the game on Wii U until a time-frame within which several other high profile titles are potentially releasing, months after the releases on all other platforms is most certainly conducive to attaining decent sales figures, the lack of which they will probably use as an excuse to continue withholding support and somehow not attribute to their unfortunate method of handling the situation. It's a self-fulfilling prophecy. Less effort results in less sales, less sales results in less effort. We must simply confront the reality (again) that 3rd parties will be reluctant to support the Wii U and that even token efforts such as this will be mostly futile, and likely inferior in some capacity.
I wasn't particularly interested in Watch Dogs anyway. I'm less than uninterested in a Wii U version arriving later.