Glad you liked the audio so much, that was my job! Most of us are actually avid Celeste modders, specifically that's where Crispybag, NoahCrawfish, myself, and Spooooky all met each other. I also think that fact may have played a role in the boldness of the difficulty, as putting that kind of faith in the player alongside having those deliberate difficulty spikes is pretty par for the course within the content we're most familiar with.
Tysm for playing!!