This minigame is so unfun its not even funny. I like the idea, but the execution is horrible. In my 1 playthrough I had:
Several demilitarized zones appear which tanked my overall stability of the region because I could not physically stop the revolts.
The pacifying break with 1 of the 2 spots for raising stability permanently disappear.
Troops only occasionally raising stability levels, from what I encountered having troops stationed would raise stability by .3% daily to tense levels but only sometimes and rather arbitrarily.
And finally there were continuous crashes which erased a month of progress every time and typically messed with troop pacifying.

It should be a difficult thing to manage and I like the idea, but making troop impact more consistent, not having random demilitarized zones appear and fixing the issue of pacifying slots randomly disappearing would make it a great minigame to cap off a fun playthrough rather than an annoying slog at the end of a big war in Africa.