Likely never reported because most people fight mobs where they stand and don't leave them rooted in an area, then walk away. There's not much root/rotting going on because of the level and risk of the area. 
 
I'm guessing people just assumed they got too close when he came running. 
 
EDIT: Cazel had a normal assist range and spawned in place of any of the SG spawns. 
		
		
		
		
		
		
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