Since I'm technically a 'freelance' PP commander now, I can say that I'm a little disappointed that Mahon never actually used this and pressed for the 100% (unlike how Winters is now revving up again). The sheer amount of violence / persuasion it took to get Utopia utopian makes me jealous of that ethos.
If Mahon went for 100% fort trigger reductions that would mean several Alliance factions would have to be flipped to either independent or Federation control.
Mahon is in a similar position to Aisling Duval in some ways. If Aisling wants to reduce her triggers she needs to flip Empire systems to independent control.
Yes, there are opportunities to increase Alliance corporate control in Mahon space but then you could argue that the Alliance is becoming another version of the Federation.
For those of us who enjoy playing the BGS and working with several factions the question of which factions do we wish to spend our time with needs to be answered. We could work within Mahon space and undo a lot of the fortifcation trigger reduction work by replacing independent and Federation corporate factions with local Alliance factions. Or we could respect the effort of other groups and spend our time outside of Mahon's influence assisting Alliance factions irrespective of government type.
The end result is that the Alliance as a superpower grows and maintains it's diversity while Mahon's triggers remain largely unchanged.