Maybe dodge also applies to surfaces? That is, you are nimble enough to step in the one spot where the floor isn't on fire. Or it simply reduces the damage of surfaces slightly? Would give rogues a bit more freedom to run around without depending entirely on (the fairly broken) levitate skill.
I don't think a dodge tank will be viable in D:OS 2, unless you also invested in con and just generally weren't a damage character. Even with 30 Dex and the duel-wielding parry talent, that's only 30% dodge, 20% with a much more reliable and versatile defense of a shield. Given you can't dodge spells, dodge is pretty limited in its usefulness. Maybe if they did something like DND5e, where dodging spells usually halves the damage, dodge would be more reliable. Perhaps they could even make that a talent like Savage Sortliege.
