I really praise them for completing such a fantastic game, but loot system seams like vanilla Diablo 3, just a avalanche of mostly useless items. It can surely be improved. For me, ideal system was implemented in Divinity 2: Dragon Knight Saga. Drop of some items was fixed (items from Mindread or set items), otherwise it was pretty random. Most pleasant surprise in Divinity 2 was actually some kind of endgame content (Flying Fortresses), where you can get strong set gear with fixed stats. That planed but canceled "Lair beneath Phantom Forest" could fit this role of endgame nicely. Maybe we can get some improvements with mods some day.
