Skreenak has a habit of 'raiding galadon' and had recently been attacking guilds. This made me unsure IC as to whether or not he was controlling a mob or you were. I knew you had undead spells you could be using but I couldn't prove it wasn't him just trying to force a misflag on my part.
So basically because he doesn't mind attacking guilds/raiding Spire IC you got a free pass.
Gnimos had zero misflags for this reason, he never flagged if he wasn't sure about a crime.
Not sure what you were expecting there.