My reason for voting against is that I am strongly opposed to players calling for a mulligan on the faction they're dealt, as it disrupts and delays the campaign start. If you want to trade factions, arrange it in private and do so at some point prior to your first turn being up. No need to involve admins, and no need to bring in the headache of playable papal states.
Also, Macrath once attempted to incentive people to stick with hotseats with free games on steam to the winners, and even then none of them actually ran to completion. Signature banners arent going to do any better.