I can see what she is trying to say, that each magnet is angled to make the other other 'slip across' the magnetic field, similar to when you put two north poles together with permanent magents, and they would push the rotor round with the force of the repulsion, using the brushes to provide the final 'kick' to the spin.
2 things spring to mind immediately :-
1 : How the hell do you control the rpm? Permanent magnets are famous for their non-adjustability.
2 : When the same poles meet, it's not that one pushes the other away, it's that they both push each other away, so therefore any kick forward on one rotor is going to create equal torque in the other one, therefore resulting in zero power gain, at least, that's the way I see it.
Ah well, I'd actually like to be wrong

Edit : I suppose making the rotors go in opposite directions would work on really really tiny motors, could be useful in micro-engineering, but you'd never get a magnet powerful enough to do that with a motor of any normal size.