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The fact that Lucifer was defeated so unceremoniously in my playthrough is due to exploits and a bit of luck. Without using bugs, I wouldn't have been able to defeat 500 Pit Lords on the road. Also, I caught Lucifer on version 2.2.3 just a day before he was planning to move inside the left garrison. Judging by what you wrote, the orange faction might start exploiting resources much earlier. And if it's behind the garrison, a raid on it in the second month becomes much more problematic.
Regarding the purple faction, I also thought it would be better if it developed faster, but I didn't want to write about it to avoid causing further distress. :)
It turns out that the purple faction, in any case, plays the role of a background character. Just like the final boss, who is defeated in an autobattle.