Flavor Step!

Clear is a 20. Just the clear is a 20 because it's easy to mash. If you're going for full combo or scoring, just consider it a 21. To put it simply, it's upper-mid 20 for clear and top-tier 20 for scoring. I only recommend full accuracy play to high-level players.

I don't think it needed to be lowered.

for a 21 it was far too easy, for a 20 its a perfect heavy twist challenge to check if you can twist/cheat

Even if the BPM is low, the twists are so overwhelming... plus the early section is confusing.