A PPC CPU clocked lower than other CPU's? Unheard of!
He never said it was less powerful. He said the CPU was clocked lower which is to be expected. PPC CPU's offer higher performance at lower clock speeds. Microsoft and Sony clocked their CPU's as high as possible because it was cheaper than a CPU with a slower clock speed but better capabilities. They went speed > capabilities
Developers will have to optimize their Wii U games in other ways than utilizing clock speed to get more power out of its otherwise faster CPU. Yeah back in the Gamecube days we had the same discussions...