If Larian wants to make a playstyle that's active and carefree that doesn't punish you for mistakes that aren't painfully obvious like walking into fire, that should be an "easy" difficulty setting. Call it "adventurer" mode so it doesn't have any negative connotations. Jump around without AoOs, have more bonus actions and stuff.
I don't mind if it burns you (heh) for literally intentionally walking into fire. When it pathfinds your companions into fire for no reason at all, that's just annoying.