For those that are actually wanting this uh..... "mediocre" (to put it nicely) game, I'll just say that the most famous pirating torrent website now has it.
Personally, no. Even if I still had my old 5mb/s connection, no. Even if I had the 5mb/s connection and the game was only 6GB, no. If the Wii-U was fully hacked and there were easily found tutorials on how to "softmod", "hardmod", etc your Wii-U, then run these types of things on it, then maybe, but still probably no. The game is just too shitty.
Oh, also, I HIGHLY doubt the game is actually 23GB, that's the size (after OS managment space) available on a single layer of a Wii-U disk. There still isn't a Wii-U scrubber, that's the ONLY reason it's so big.
Once a Wii-U scrubber comes out and can be applied to it, I'm betting it'll be within maybe 100mb of the 360/PS3 version of the game, which is 7.55GB.
Seriously, when the Wii was first cracked and isos were coming out, every single one of them was ~4.6GB, and it was like that all the way until the Scrubber came out to remove the excess.
I'm betting it'll be ~23GB for every Wii-U iso at first too, until a Scrubber application comes out for it as well.
Seriously, why would the Wii-U version of this game (which doesn't even add anything, actually) be 23GB when the 360 and PS3 versions are 7.55GB?
So people, use your brains and think of Wii iso history with this stuff.
TL;DR - The game itself is around 7.55GB, the reason it's showing as 23GB (the size of one layer of a Wii-U disk) is because there is no Scrubber-like application to remove all the excess, just like there wasn't when the first original Wii isos came out.