I will be honest, as much as I like the addition of the Masochist Mode and it's mechanics it can be WAY harder and grindy to get the Soul of Eternity.
Don't get me wrong, it can be really rewarding to get the Soul of Eternity after you defeated all Post-Moonlord Masochist bosses and all that, but for me grinding for them is enough for me.
What I'm trying to say is that I would like of you to consider making Masochist Mode a separate mod so we can enjoy the Souls mod without having to go through Masochist Mode and it's bosses, but keeping it as an optional add-on.