Indeed, and in fact, Durkula explicitly noted that the plan to subvert the vote required that the Order of the Stick be defeated in the Banquet Hall fight. Durkula clearly expected that his plan wouldn't be enough to stop the Order, and at the time he said that, he expected the Order had 0 Dwarves and 0 Clerics with them, instead of 3 Dwarven Clerics.