Transfers factions
For many faction transfers, they may have realized their reputations will transfer over, but not so for any Argent Tournament progress they have made. In fact, Argent Tournament gains and reputations both will not transfer over if they change factions. Blizzard could not think of a way to do it technically, an so as we understand Requiem Lant, anyone who transfers factions will lose all of their current Argent Tournament standing, and have to make their way back up through the ranks to Champion.