There needs to be an adjustment to how Oath of the Ancients paladins are treated, at least in the Nere fight.
During the course of my romp thru Grymforge, I convinced Elder Brithvar to stand with me against Nere. During the course of the battle, some nearby guards became hostile and got killed during the fight. At the battle's culmination, I convinced Brithvar to free the gnomes.
As soon as the dialog finishes, I'm informed that my Oath of the Ancients Paladin has broken their oath because of the guard that got killed.
This is clearly nonsense, and no DM in their right mind would make such a call. When there's a legitimate pitched battle already in-progress, and members of an evil faction join in against a party that is actively trying to save innocents, this sort of guard reaction/consequence should never trigger in the first place.