Two random thoughts on sorcery that are Moe-related:
When Moe meets w/ Xerius and uses Skype to bring Skauras in...the light on his forehead is described as ultra-bright as it often is via other Cish. Not saying that is anything in and of itself, but perhaps another little sign that Moe's weakness is overstated?
Also, when one of the skin spies rushes Moe in Kyudea, Moe who is, at this point, bleeding to death (presumably) and blind (at least in the sense that he has no eyeballs), and is without his snakes, dispatches the skin spy with ease using something along the lines of Blue Fists of Liquid Fury(TM). Keep in mind that Kellhus had trouble w/ the Thing Called Sarcellus in that wrestling match type of game.
No other Cish uses either Skype or BFoLF in the entire series that we are aware of, neh?
Curious...