This just proves the exact opposite. The system is great, because any level can be rewarding, so there's actually a reason to do it. People who dislike RNG seem to forget that in WoD you are stuck at 835 ilvl if you couldn't raid the first tier until new raids and catch up mechanics hit in the next patch. Now you at least have a chance to progress, without having to raid.
People just want every single item they drop to be an upgrade, even though you get infinitely more drops than any other expansion. I'm 863 and have 1 piece of raid loot, that was never possible in any expansion.