Pather cells were annoying because 1) they ignore all defenses that stop multi-fleet expeditions dead in their tracks, and locating them without the Intel bug was annoying. Now, player needs to pay credits to find them... but he does not need to because, hey thanks Pather bug! and 2) they are immortal. Well, if player can keep interest down low enough, they go away, but that will never happen on a world with a sticky alpha admin.
One year seems like enough time... for one cell. If player cannot synch all of the cells to a single base, player then plays whack-a-mole with Pathers, and player already has whack-a-mole problems with pirates.
Actually, if player can just order his patrols to seek-and-destroy bases, so player can spend his time doing what he wants instead of playing beleaguered superhero answering every last trivial phone call, that would be nice. Player has an army, but all they do is goof around his colonies eating donuts or getting high from stims. Hegemony inspections can be bribed away with a click on the intel screen. Dealing with bases from zombie factions should be similarly easy if player has the manpower and money (which he does when he has the full resources of his new major faction he built up).