For me, inactive or active it doesn't matter as long as the city is taken tbh.
Even tho one of NF members that you call "inactive" became inactive after his leadership decided not to help him break a siege in one of his cities, yeah you can consider the other cities that have been taken from him as Inactives but Avernus did not go for those cities because the player was inactive. (Avernus had conversations with the player as his first city was under siege).
But yeah, a big number of CSs sunk its true. The event made almost impossible to take cities with low wall and still has some effects.
And to NF, please stop complaining about Avernus targeting the inactives. They are part of the game right?
Nameless Faction have pacted The Peaky Blinders to fight Avernus.
Avernus have pacted League of Warriors to fight Nameless.
Looks pretty equal, lets see who does better. One thing is for sure, this war wont end without one of the alliances vanishing!