I wouldn't call these elaborate, but basic requirements to form a reliable conclusion. Science is what's repeatable, so multiple circumstances are required in order to determine the truth.
Even more important than that is since bentomo is making power memes, it's extremely important to get some real numbers instead of eyeball values; as a good setup is designed to compensate for any potential draw spikes. Assuming he had went with a 1.8v 400ma(max) regulator to compensate for any spikes at a 350ma rated line, the results would be disastrous: the Wii would appear to function properly in the Sysmenu and Priiloader, but would be unable to function past that point. Similar to how a single PTH08080 functions on a combined 1.15v and 1.1v line.