I don't think it has so much to do with loyalty to a chess piece as it has to do with loyalty to your squadies.
I fly Knight. Not because I HAVE to be a Knight but because I know when I log on the squadies I want to fly with will be Knights looking for the rest of the squad.
JG44 are Knights. That's where we all know we can find each other. With the new arenas and arena caps and everything else it's hard to find more than maybe 3-4 squadies at any given time. We used to have our squad nights and have upwards of 20-30 people on flying together in massive bombing runs or fighter sweeps or taking some bases, and we just don't see that anymore. Since these changes took effect I've logged the least amount of hours in the last 2 months than I have in the last 2 years because I just don't get into it anymore.
I personaly feel that the community is starting to fragment. The big MA was a blast. EVERYONE was there, and that's the thing that really drew me into this game.
I would much rather see the "old" MA back with a rolling plane set than the fragmented community we have now spread out into 4 MA's.
Just my humble opinion.