As all uncomfirmed news. This should be taken with a grain of salt.
Unless they had some awesome bundle, its false as false can be.
How is it false or unconfirmed when Target are the ones who released the statement. It is 100% correct.
According to Target the Wii U, along with Apple's iPad and Watch were among the top 3 products to drive sales during its online thanksgiving day sale.
You can't disagree with that Statement because it's what Target are reporting from their own online sale.
But that doesn't mean to say that this applies across every single other store or that this is a trend with everyone. It's also easily explainable when you notice that Target were one of the only retailers to have a cheap Wii U bundle online, but very limited stock of PS4/XB1 online with some bundles sold out. It's clear to me at least that the majority of Wii U stock was allocated to online channels whilst the majority of PS4/XB1 stock was allocated to retail channels.