Ducati's do sort of aquaplane....they rise over everything, they wallk on water :P
Actually I was once given the scientific reason why a motobike does not aquaplane, - I nodded politly and forgot it instantly

- Now on sheet ice, you can feel like you are aquaplaning, I have done it a few times, you just sit there trying not to move an inch leaving all of the controls alone, you even stop breathing, until you are through it.