Yeah, I think the probability works out a little funky in that regard. But, well, I bombed Stats in college. I think this is a worthwhile note to add to a future edition, though!
I don't think it's a perfect replacement, but it works like mostly OK if you've got no other way to play Tarot-based games. I can't think of many other use cases beyond Anamnesis games, but I figured I'd throw it into the world in case it was helpful for someone.