As there are more multi-system factions in the galaxy the BGS could be developed further to reflect this.
A simple method would be to use the mechanic that determines whether factions go into war or election to ensure that factions trade with friends and attack enemies.
Though this mechanic could also be improved, because the reason why authoritarian governments should go into election at all is obscure, it would perhaps be better for their character to be developed rather than for them to be considered alternative forms of democracy.
These improvements might promote more peaceful governments, with the authoritarians deprived of trading missions.
A simple method would be to use the mechanic that determines whether factions go into war or election to ensure that factions trade with friends and attack enemies.
Though this mechanic could also be improved, because the reason why authoritarian governments should go into election at all is obscure, it would perhaps be better for their character to be developed rather than for them to be considered alternative forms of democracy.
These improvements might promote more peaceful governments, with the authoritarians deprived of trading missions.