Many tasks on wikipedia require much less thought than article creation, so it would be unreasonable for him to have to check every single article if using AWB to stub sort a category for example. As far as I can see his usual AWBing can caused no problems whatsoever, all he's had a some project members asking him to state class=stub. Perhaps Ser Amantio is afraid that if his AWB is restored he'll have people moaning at him about quickly tagging talk pages or something...