I think the big difference with platformers is if you die and have to start over, the level is still a challenge and it takes several tries before it becomes annoying. With a puzzle, it stops being a challenge after the first time you do it and redoing it is always annoying. I think the idea is okay, but you need checkpoints to keep you from having to redo sections you've solved just because you missed a jump. Try to make it so death only makes you redo platforming.