Heh, that's actually what some kids aim for (though we don't get Ds. We get Cs to pass.) They just want a C, just so they can pass. Some don't aim higher.
Not the best example, I don't think :P Regardless, those games should pass expectations. Do you have another way of explaining why those expectations aren't so high and are likely to be passed? Or is the Wii just awesome like that?