I passed that end phase 1 time but I still routinely fail them much earlier than that part. I think the difficulty is just in how little time you have to check each pillar and work out the safe spot between them, which yes is even harder when there's 4 pillars to check. 1 mistake and you're out is really harsh for a challenge this long lol. Also the bonus stages has such a long interaction cast bar to pick up coins, while diagoro pounces between them so fast it makes it very risky to get coins.