What we are seeing lately is an increase of complaints regarding raid loot and named loot; this is mainly because the players of the game have become so spoiled by random generated loot, that the won't accept a lore-inspired item any more, they just want powerful and forever useful stuff (which, obviously, would break the game - but they don't understand that, because 80% of the player base, just as humans in general, are stupid).
The solutions might be two: you either accept to make named loot so powerful that everyone will go for those 5 items and equips will all look alike, or you entirely remove random generated loot from the game, because let's face it, THAT is the problem. Random loot is better than named items, a lot of people are saying. Well, it shouldn't. Loot should be something people look forward too, and it should be unique and rewarding. Characters should feel like finding a named item actually gives them an extra chance at survival, instead of going "meh, **** I got this junk loot which is better already". See my point?
I don't think the game should be so easy in giving out random loot with 4.5 powers on it, it only creates an in inflation of items in which named loot doesn't fit any more, unless is superior to anything by default (and again, I think that would ruin everyone's experience). Besides, we have crafting already, what's the need of all this items in chests anyway? Crafting is suffering from this situation too.
tl;dr: named items shouldn't be too powerful to begin with, random loot is what makes us perceive named items as crappy; we have too many powers in our equip an are so spoiled that named items never seem to satisfy; I suggest to remove the current system of random generated loot so that named items will feel like an achievement again.