I wholeheartedly agree with you, but what baffles me the most is why they didn't take other available routes to nerf the AoE. Reduce the damage to secondary targets on Throw Glaive/Fel Rush, and reducing Fel Barrage's damage numbers would have been two excellent routes that would have left ST alone. Even though Fel Barrage doesn't proc its stacks as often as before, it still does insane damage.