As you can see in this screen shot from another site that they are a lot further away from soft hacking the wii u then you would think.

The final update on the Wii had a copyright reserved from 2009-2011. The wii u has a all rights reserved 2012-2016.
It is obvious that this bootrom.bin is a dump on the vwii. And they haven't even gotten close to getting out of the wii prison.
And if they keep approaching it from the vwii they never will.
It's like trying to access your offline desktop from your laptop. It's just not going to happen.
Anyway I was just curious if anyone was closer than we are. And the answer is we are way ahead if they are still going about through this approach.