Well, if you lurk into the elotrolado's forum from time to time, you will see that the biggest game is to post some code snippets or sourcecode links (without sometime understanding a word from it) so that people with a minimum of C knowledge can do something with it.. it's like they can't create something by themselves and always need to stole/borrow/hack (pick a word) works from other people in order to feel themselves part of the so called "scene"
Thing is: thanks to the wiiuse example released in GRRLIB recently, implementing basic wiimote support in emulators takes approximately 20 minutes depending on how you know the original code, it's so easy that it's not surprising than even bad coders can do it ...
I looked at the sourcecode they modified, this was clearly done in a rush (simple copypasting of grrlib example without apparently understanding what's behind the lines, no #ifdef for the gamecube version, some keys are not mapped in menu, no way to configure controllers...).
Also, 2-player support is coded in such way that I wonder if it is even working (it seems to me that wiimote 2 will control both player simultaneously)
Finally, the wiiuse port everybody is using (and again without EVEN crediting the ones who deserve it, ie original author, Para and the one who ported it to Wii, Rhys!) is unstable and make some stuff in emulator crashing (in smsplus, it was clearly the audio that was crashing randomly when I use wiimote/classic/nunchuk to control it)
Apart that, I recognize it's fun Alex Kidd or Sonic with a nunchuk+wiimote combination (classic controller is not better than a gamecube controller, I think... ), but we should also be more patient and wait for something that is worth playing.
remember, a stable port of wiiuse in on his way:
http://www.wiiuse.net/forums/viewtopic.php?t=186