I have read a lot of complaints about the inventory system, but IMO, in the EE, the inventory system was about average for this style game. It wasn't as good as DA:I but far, far better than Witcher 3 (worst inventory system I have ever encountered). As to sorting, again, one of the great parts of these games (along with crafting) that isn't appreciated by all, but it is par for the course and better than most for relevance...it certainly isn't in a league with say, Borderlands.
With respect to the original post, a few more battles like the end one in Hunter's Edge.....and def up the # of orcs there so they aren't so overwhelmed!!!