As the title suggests: why is a 3-hour combat mission worth 3 times the experience of a 5-hour Pathfinder mission?
Alternatively, why is a 3-hour combat encounter worth the equivalent of a sanctioned AP chapter, which takes 8-12 hours, has more combats, and also social encounters, puzzles, traps, etc? Isn't all the non-combat Pathfinding worth XP and PP?
This affects both sides of the GM screen. As an example, Thornkeep level 2 is 8 single-sided pages of material, of which 1 is a full-page map and one is a full-page of fluff text/artwork. So, six pages to prep, versus 15-30 for a regular PFS scenario, to get 3 times the Chronicle for GM credit and double the GM star credit. (This last part also applies to the Free RPG "modules", which count double for GMing for some reason.)
Note: this is not just a style complaint - I can choose to not run/play Thornkeep levels if I don't like them, and I know lots of players do like them. But why is the in-game reward for killing higher than that for exploring, reporting, and cooperating?
* I also recognize it's not just about time spent at the table - if everyone has fun at whatever pace they play, good for them. I think rewards should be equalized for different styles of play, though.