I agree with the main post that nothing exciting ever drops. I, however, do not want charms taking up inventory space (all I remember from decades ago is charms in Diablo 2, unless you mean something else - the items that take inventory slot yeah?)
Even if it had it’s own slot though I’m not too sure how I’d feel about another layer, but probably would improve the excitement of loot a little bit if there were OBTAINABLE YET POWERFUL ONES.
Frankly, uber uniques being unicorns is the main thing that ruins the fun. The coolest items in the game will never be seen by the vast majority of us.