Galactic Power is not a fit way to match make guilds for the Territory War - it's an outdated system that doesn't take into account the extreme strength of GLs relative to their GP or even make allowances for Relics.
For example ...
My Baze Malbus is 6*, g8, 3 A Mods, 3 C Mods; his GP is 11,373. My GL Rey has a GP of 49,743.
According to match-making purely based on GP, five copies of my Baze Malbus is a greater asset than my GL Rey.
Now imagine if one guild had no copies of Malbus and 10 copies of my GL Rey and another guild had no GL Reys but 50 copies of my Malbus.
All other things being equal, the GP values would match and they would be considered a good match for each other.
Does anyone REALLY believe that would be a fair fight?
Galactic Power is not enough for matchmaking anymore, it needs updating to take into account the new mechanics in the game.