I suspect they've pegged 14k as their best estimate of what the Pies members will take up, based on history (specifically, in the 2012 prelim they seemed to have 10 to 15k of the 57k crowd), so they've set the initial 50:50 members allocation based on that. Once that's over, they'll do SCG trust, then presumably release the rest of the tickets as GA.Can't see how it won't be. Only 28K between the two clubs.
Might be some random tickets left for general admin - or maybe they'll hold some back. Who frigging knows. About as much transparency on this stuff as there was on our trade ban.