Black kits might not be the smartest idea when you're playing crucial qualifiers in the sun in PNG or the Solomons though...
Doesn't look to have stopped the Black Caps playing in Brisbane/Delhi/Dhaka/some hellhole
Even if black uniforms only very slightly disadvantage you, why give any advantage to the opposition if you don't have to? Sports games can be decided by the finest of margins. The half a yard of pace you lose from being too hot might be the difference between scoring or not.