I like this part of the article:
"Punch-Out!! on Wii offers great new control opportunities, utilising both the Wii Remote and Nunchuk to let you mimic the movements of the left and right hands as you let the leather fly. Meanwhile, the “classic” control system, invites you to use the Wii Remote in a sideways position to simulate the original NES controller and gives the real retro fight feel that Punch-Out!! fans love."
So bottom line, there's no grounds for any kind of bitching since the game can use both motion controls or classic controls.