It's not huge though is it?? It puts its on par with PS360, and that's if the VGC figures were spot on anyway, from data we've had in the past we've seen WiiU has been overtrakced in the UK.
I took a random week (24th august 2013) to see how much ps360 were averaging there (because at the moment, their numbers are being boosted by gtaV), and the ps3 was at 5800 and 360 at 7500, so yes, it is indeed a great boost. It puts it above the average of the 2 best selling consoles there. I can't see how this is not impressive, it is the equivalent of if the pricecut/windwaker bundle boosted US sales from 9k to 50k.