But that source lives in Europe and doesn't have access to the US region in the Wii U eShop:
So how can he verify that the digital purchase returned? He can only check the browser based eShop for the US region... and there is still no purchase button for the Wii U version.
Neither the Op nor thread title reference this as pertaining to the the NA WiiU eShop only. At the very least, that detail should be amended since European WiiU owners have screenshots of the download purchase button still being available.