"A model gains XP for any of the following actions:
2 XP if thier action directly causes a enemy fighter to go Out of Action"
(Plus the others but not relevant here)
First off your Wyrd. Cast/manifest power, make Death Maiden go nuts, Death Maiden stabs fellow sister a lot.
While it happens in sequence there are intervening steps between the wyrd and the OOA gang sister so it is not direct.
I would say that the Wyrd did not directly cause the OOA so no XP.
Now for the death Maiden it's just a mess. Your opponent activates the murder tornado. They then roll a D6, roll 3-4 then hand control to you. You then charge and put some out thier sisters OOA. Then when the activation is over they revert to your opponents control.
If you are playing a multiplayer game the other players roll off for control.
None of that really seams direct to me.
I would be tempted to hide behind the legal definition of insanity. If you are insane you are not responsible for your actions.
All the other XP is basically given for something your model chooses to do. They choose to shoot/stab that hiver, they choose to turn up to battle, they choose to quit running around waving thier arms around (like a certain peasant from a GW Giant set I believe) and get back in the fight or they choose to help thier comrade bleeding on the floor.
If you are insane your model does not really choose so I would say no XP for the Death Maiden.