Actually counter-rotation is a legit technique for creating rotations 180 degrees or under and I know firsthand that Nev teaches counter-rotation.
In regards to spinning off a jump you typically don't use counter-rotation, but you use counter-rotation all the time for certain 180s off rails, boxes and for shiftys as well.
As I said, there is (used to be?) some confusion about terminology - wolfie summed this up pretty well previously
But this is a terminology issue, not a question of technique - I have all of Nev's videos and he does not advocate what rasmasyean describes (the "release the twist ... in the opposite direction" bullshit).