Yeah, that's exactly what the other posts say. Except of course, they don't at all, and you obviously didn't actually read them.
Wii games designed for PL II are mixed in surround and are output in an encoded surround format. Period. Full stop. End of debate. You can not argue against that, and even attempting to shows a lack of education on the subject at hand more than anything else.
Again, stop presenting misinformation and bad advice as fact.
How about instead of sticking to your incorrect and broken viewpoint, read the other thread that I linked to and learn something today?