You can of course run aug in delves if you like it and want to.
One thing to consider though is that a portion of Augs dps is intended to come from two other dps. So if you are ever doing delves that aren’t a full group, like if the group only had one other dps or just you for dps, it would be significantly worse than Dev. But all that means is delves take a little longer, its not like you’ll fail them.