Right.
But basically, with multiplicative Might (or Strength/Resolve), it's a build-dependent choice as to which is better; for most damage-focused builds,they're roughly equivalent, and even interchangeable.
In some ways it seems like it matters a lot less in Deadfire than in PoE, because in the original game, you needed a certain amount of Might to help punch through DR. Now with the move to Penetration/AR, it seems like they're basically interchangeable, especially the longer the battle lasts, unless your build has something specific in it that makes you prefer one or the other.
Counter-intuitively, I also suspect that the move to replace Might with Strength/Resolve actually makes Dexterity the best damage stat for casters. Hear me out: Casters are going to use their weapons a fair bit regardless, and Dex will help with both weapon and spell casting, and will help with non-damage spells also.
This also seems like a strong argument for multiplicative Might: if Might isn't multiplicative, Dex is the clearly superior choice, mathematically.
Also, since spell damage AND deflection is going to Resolve, only certain types of weapon-based offensive characters will favor Might. If it is not multiplicative, this type of character will not be very competitive compared to a caster or a hyrbid. Might should have SOME reason to dump points into it - if it's not a very good force multiplier then what is the point?