Why would anyone want to repeat partisan quests, except to help someone out? The system is designed to run through mercenary, partisan and mission tasks (in other words, playing in the expansion that the devs and the team worked hard on to create) and that takes you close to level 120. I am almost halfway through 118, and all I have done in TOL is Umbral and Maiden merc/partisans, Vex Thal merc and the four missions (I did get a 60 percent ish start cause of overseer collects). I presume by the time I get through the remaining tasks and quests for the rest of the zones, I am going to be 120 or close to it. I can then go into sandbox mode and do whatever I want to do- grind, camp augs, kill named, repeat missions, help others with what they need, etc. Some people want to sandbox mode a new expansion. They can. No one is preventing them. You will get to 120 that way. It is going to take longer, and you may not experience the expansion. But that is OK, you have the choice to do that. Just like someone can ride a bicycle to work instead of driving a car.