The bottom line is not everyone had full Champion gear when hitting rank 60. That's reason enough to put the commendations in the bag. Also, companions and mods/enhancements from other gear.
This is like exactly what WoW does...no one wants a repeat of that. But the elitists will show up in a second...Also, that size increase is the same between Champ and BM, so yes, people will cry big time.
The fact that you are so bothered by this is funny. It shouldn't effect you AT ALL. If you are always grouping with others, you'll always play other premades. You're obviously the best pvp'er in this game, you'll have all the gear first. Woohoo for you!!