So yeah while waiting for my thread to conclude I will touch upon some other stuff.
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In addition to these changes/ones discussed in the OP, the following should also be implemented regarding the conceptual/info stuff.
Gojo: Conceptual manip types 2 and 3.
Ogami: Information Manipulation type 2
Yaga: Information manipulation type 2
Subjective reality to pretty much everyone at varying levels (nigh useless for non sorcerors). Regular humans en masse create cursed spirits unconsciously, curses can be empowered by the faith of humans, Vengeful Imaginary Cursed spirits are human conceptualizations turned real, domains are said to be a person's inner world manifesting as real, Sukuna evidence, etc.
Mahito: Information type 2 for being able to interact with spiritual information that can also directly construct, transmute, and modify matter. Human souls being
dominated by concepts that inform their souls metabolism and thus behavior.
Also as far as the whole "are cursed spirits invulnerable or intangible" argument goes it seems the answer is somewhere in the middle. Curses and cursed energy being abstract in nature would require humans to be able to see such things as thought and emotion. Non-sorceror humans can't see cursed spirits such as the case with windows and buddhist monks, the latter of which train their soul
through introspection and can then detect other souls and cursed spirits. Humans also can be cursed and not recognize the existence of said haunting curse nor the effects it has on themselves or the environment. Thus, it would seem that in order to interact with cursed spirits one needs spiritual awareness + the ability to utilize cursed energy. Without the former, interaction, in general, is impossible (which is why humans can't naturally see curses, souls, thoughts, etc). Without the ability to utilize cursed energy (essentially weaponized thoughts, emotions, etc) interaction is useless which would also explain the window's attack plan on Junpei discussing the three outcomes being (1) junpei can't see cursed spirits, (2) Junpei can see them but can do nothing to them, and (3) Junpei can see the cursed spirit and attacks it.
The above explanation also puts to bed the whole "curses aren't abstract existences" argument.