I concur:
A) 2nd set in KIA was carved from old wood - ehm, pictures - quite a few imperfections, no 3rd imaginable.
B) The video scene at 4:00 apparently shows one of the RSG Par3s with a two-tiered green, and I see two "pins", a blue one and a red one. Other pins or cones may mark the green boundary. I'm too "young" here for that discussion, but there's no proof on the first view.
It makes clear though that RSG has two pin sets, one unshown until now...
C) Easy, Medium and Hard are mixed combinations of the available pin sets, but not denoting three full sets. On the contrary, while testing "easy" and "hard" pin sets of KIA#9, the same pin appeared both times, after 8 wasted practice holes :)
I won't bet my house though because I love my flat.