I think raids are fine how they are right now, but adding an easy mode for practice/fun wouldn't hurt, as long as they don't get LI' or achievments while doing it. It should be used for training/fun, not for "baddies" to farm legendary armor. Vendor items are fine tho, as long as they have to pay the same price and have the same drop rate. I don't even consider myself a awesome raider, but honestly if i could just make my legendary armor raiding on easy mode, i wouldn't even want it. It would feel boring like all other legendaries in the game.