Doesn't matter if it's fake or not...

...but this post brings up valid points of what might be the explanation for many things, Ghmou who claims his brother has a chat with a Blizzard employee (I know, original -- isn't it?), says:

...In the email discussion, the unnamed Blizzard employee indicated that Paladins were a bit of an Enigma.

With their defensive nature, they could excel at tanking, but cannot due to balance issues. [My brother] broke it down like this:

1) Paladins could be decent tanks if they had a taunt, but they cannot be made "main tanks" because they are both Alliance specific and because this could possibly anger and devalue Warriors.

2) Paladin healing is fine in a raid setting, but increasing their PvP healing capacity (other than the new 15% non-interrupt bonus from Imp. Concentration Aura) would be too "powerful" considering their other abilities. This could also discourage or devalue Alliance Droods and Priests.

3) Paladin DPS is the big problem. With plate and heals, it makes it difficult to balance DPS. Paladin DPS is largely reliant on Holy Damage, which is unresistable. If Paladins were given more "white" DPS while keeping the current level of Holy damage, Invulnerability shields, heals and cleansing, they could potentially become overpowered, resulting in a serious imbalance. Especially considering the number of high-level Paladins that exist in the game.

His brother also said "They don't know what to do with Paladins."

Interesting tidbits which give you a whole new perspective on things. Read the entire thread if you want.