its not so much the gallic corporate factions that are the problem when it comes to activity. EFL and IDF are very active. its simply because the systems are too big, and in general there are too many systems in the game compared to the number of players.
i heard they're gonna shrink some of the systems for 4.87 and that might help a bit, but an incursion of IC and silent Zoners wont really make a difference - those players would just be missing somewhere else on the map, and will discourage players from creating gallic trade characters. i think its a bad idea.