To be honest, I would be quite happy if the IOSU exploit will be release rather later. First of all it gives the devs more time to polish everything (complete solution incl. EmuNAND etc, Loader, Ripper whatever) and it might be a higher Change that it won't be patched in 5.5.2.
I rather have it in a higher Firmware release, hopefully with at least a few new Features. Yeah I know the Wii U ist almost dead, but guys, whoever buys the console now or did just lately, should have been clear already that not to many AAA-Titles will be developed for it anymore.
In the meantime I enjoy the games that I have and every little piece of now homebrew is like a little x-mas gift.
It would be a shame to burn the exploit just to speed up a release with unfinished software.
Cheers People, it's Weeeeeeeeeeeeeeeekend!