Yeah, I remember that hillock, use it all the time. 2 problems though:
- The drop isn't particularly high. Would require several iterations, esp. with tough leaders. I remember shoving a goblin down during an encounter just before their camp. I sent it all the way down to the road, from the highest point, and he survived the fall with about half HP remaining. This knob is peanuts in comparison. Should have taken a while, I guess.
- Some goblins do lock up on NPCs, and it might not be easy to make them pay attention to your paragliding offers.
I mean, if that encounter has been done without using a single spell or weapon, well you have my respect. A daunting task indeed.