I would rather give constructive feedback on how to make the system better than gaming the current one just to have it get AI xp patched out of the loot system, further alienating the player base.
AI players get patched out, they complain, Relic gets more pressure to change the system. That sounds pretty good to me. Honestly if the system is going to give people a competitive advantage I really don't even think custom games should allow people to get war spoils at all, but if they won't budge on that they should at the very least make the progression to the bulletins / commanders be measurable and tied to your rank, rather than this random duplicate idiocy.
I have a personal theory that maybe Relic just got some kind of ultimatum from Sega that said something like 'We need you to increase player 'engagement' stats.' So some genius at Relic came up with the brilliant idea of this system as a way to (artificially) boost playtime hours. Well if stats is what they want, stats is what they get via this script.