i think the point about the bad guys not using mortars is that there is only so much violence the public is willing to tolerate. it's a sort of boil the frog scenario where they let the gov. confiscate books so long as they have the libraries to turn to. Both sides are looking to gain legitimacy from the people so it's a sort of cold war. If you look back on the history of Japan, especially around the Meiji era, this sort of warfare is more typical then not.