I agree with the above. Plus there's always statistics, and if tier 1 consists of 3 paladin decks and face hunter than we have a problem. It's not L2P issue, it's queuing into the same deck most of the time. Nerfs (and buffs) help shake things up and discover new decks that otherwise would be inferior to Paladin.
Also, I will leave this small sample size here: I played 12 games last night at diamond 5 - 12 paladin players, 7 of them coined crab raider turn 1.