OK, case in point:
Wizard McFee and Scion Sleestak are fighting.
McFee puts up an Evocation 5-Shift Spirit Block vs. attacks.
Sleestak says, "Hmm, I brandish my Venomous Claws, roll my poisoning Maneuver, +4."
McFee rolls Athletics, oops, a +0
Does the Block stop the poisoning, or not?
As Umbralux pointed out in RAW, McFee would have to make a special, anti-Maneuver block to prevent that.
Does that make sense, or is Sanctaphrax's concept better?