I would not necessarily expect the Elite version of that same L20 item (so L22 presumably) to be much, if any, worse than that same L27 item however, and I would certainly expect that if that L20 item came from a raid it should also be a lot better. Elite and Raids are clearly a lot tougher and usually you need multiple runs to get that one thing, sometimes a lot more than 'multiple' if you see what I mean, if there are scrolls and such involved. Randoms are just that - random. They could drop in a L28 casual where you're running on autopilot at cap, very little effort involved. Named, in my view, should remain viable gear for a lot longer when compared against random loot. I say this as someone who does not have any truly hard/grind to get named items except, sigh, the Bloodstone. The point being that named loot getting significantly better does nothing but put me at further disadvantage, except maybe it would give me another few levels use use out of the very few raid items I have. And I would still be in favour because it's entirely fair.