I don't think I have ever seen a skater fall on a split jump.
I do not skate myself, but to me it looks like non-rotational jumps like falling leafs (leaves?), Russian split jumps, and stag jumps are non-trivial to say the least. You have to leap as high as for a rotational jump, achieve a full split or some other position, then land on a continuous edge. It looks pretty hard to me, and it certainly can be a choreographic highlight in a program.
Are these elements easy or hard for skaters at various levels?