While incentivizing people to team by offering increased loot chances isn't a bad idea in the slightest, it's also more or less one of those "band-aid" style fixes we really want to avoid. The main root of the problem is that an instance which was designed for six people can be done with less - Therein lies the real issue. The effort we're putting forth in regards to the profession balancing is designed to effect both PvM and PvP across the board, hopefully making PvM content more in-line with its original designs and, thusly, more in-line with its originally intended team requirements. =)