As a DM myself, I don't think putting a grid would change anything. It's just a matter of scaling, that's all. But I agree with the jump as disengage only to rogue. As for the two short rests between long rest, I don't know. Cause with all that can happen while you are in camp, maybe they want you to camp more often than not. With it being a narrative tool, it might be difficult to tweak.
