I like surfaces. I think the game should strength and extend the surface effects.
I do to. In D:OŚ games. Definitely a system worth iteration and improving upon. But in BG3 they just don’t fit too well.
Acid gives -2 AC cause Larian added surfaces and had to come up with a different effect for each.
Mechanics making sense in the setting just seems to be fairly low in Larian’s priority list.