|Sebastian Hirsch Venture-Lieutenant, Germany—Aschaffenburg-Würzburg|
I played and ran this recently, if you go into this with a couple of very specialized characters, even if they all heavily focus on diplomacy, the scenario, you can absolutely complete the scenario with two pp.
If you go in with a mixed group of pathfinders (ok the 1 skill point per level character with maxed perception might still have a bad time) chances are very good that most players will be able to contribute something.
The ultimate intrigue rules are pretty good to get the whole group involved, not just give the guy with the social character the spotlight for half an hour.
(That said, a couple of stories I have read so far seem to indicated, that GMs didn't explain it properly/made some mistakes. It can happen, it took me quite a long time to prep.)