The main issue with itemization in Dungeon Crawler is ever the drop and improvement systems.
The drop system has always been the same with some tweaks. Kill and Loot. But, what you loot? Gear and currencies. The second one is ever made for the improvement system and/or a way to overpass the drop chance. Even so, Dungeon Crawlers never or give very few systems to craft your own gear.
MMORPG always offers to ways to gearing your character. Grinding the gear on dungeon, raids or any challenge against a mighty mob. The second, is to farm materials from killing specific monster and extracting resources. Dungeon Crawlers, normally, doesn’t focus to extract resources, because, they focus more in action.
In D3 we can craft some items, but, powerful ones comes from loot drops. In D4, you can craft uber items with runes, but the problem is the GA.
So, GA are more problematic because add a full layer of RNG. The idea of Itemization, is ever we have a way to control the loot we want, but, player doesn’t have any control over GA. I said before we could control it with extracting the GA and implement in the item with the stats we need, but the GA need to be the same stat to be implemented.
Another issue with GA, items can have multiples GA, so, the solution I said before doesn’t fix the out of control, is just a patch.
Taking that in consideration, we have two choices here, remove GA system and nerf the max difficult of the game or GA should not be random and be applied on Masterworking system in the 25% rng.