The Swiss one only allows you to land on (Swiss) glaciers - and requires a minimum of 250 (!) landings on ten different sites over two years (so you face a full variety of conditions).
True, but not as onerous as it sounds.
I did 40 ski landings in 4 locations in one day!
(touch and goes with very tight circuits and no circuit traffic make this not only emminently possible but superb fun!)