I just don't think Paladin secrets do enough for this card to be a good card, and 2 mana 2/2 isnt even a good statline for a 2 mana card unless it can do something amazing. Which I don't think "get a Paladin secret" is. It would have been more acceptable if the class was less tempo-oriented and could do things without having a minion on board first (Paladin "removal" always requires something on board first).
Paladin might still use this just because of a lack of other choices in the two drop slot...but if you were playing midrange, why wouldnt you just play Hunter over Paladin? Honestly, Hunter has better midrange options than Paladin does right now.
Although to be fair, we haven't seen the 100 cards that are yet to be revealed.