I essentially made the same argument. Apparently now people are sticking their tails between their legs now that the dumb-ass argument to begin with is over.
WKC outsold every 360 JRPG in JP in 3 days. Userbase doesn't matter to overall sales, as we can see by PS3 games outselling 360 games (multiplat), and 360 games outselling Wii games(multiplat). It's about demographics, so that argument is a failure.