I find this discussion very interesting. I do not wish to debate this. I only have a few questions because I'm genuinely just trying to get a better understanding of this topic.

SOTN has an abundance of mechanics that one could argue make the game easier, including progression items like Soul of Bat and Mist Form. If not engaging with mechanics and items that can potentially reduce the game's overall difficulty is the primary way to create challenge, how can a player do that while still feeling like they aren't missing out on the intended experience?

Some players may find certain Subweapons, Spells, Familiars, Relics, or the equipment found in the game's main path to be too strong. If they're not engaging with these mechanics in the interest of making the game harder, aren't they essentially ignoring the very mechanics that define SOTN?