If tables want, they're more than welcome! My intent in including the soul chart was by and large solely for the purposes of levity in character creation, as the soul types are one to one based on the types of quarks in subatomic physics- their use or interpretation will vary from table to table, as I never intended them to give mechanical benefit and hoped players might be able to figure out quirks of their characters with their choice.
I'd also wanted the importance of the souls to be extremely variable atop that, going so far as to imply it through the rulebook art and the party depicted; Caroline is the ACTor of the party and functionally party leader, but her soul is her own. Conversely Monique has a soul more akin to the player characters in Undertale and Deltarune, in that it possesses her, but Moni and the soul itself lack the agency Caroline has. The gist being that I thought it'd be more fun narratively to play with the situation as opposed to a mechanical bonus xwx
Thank you for your feedback though!