I think the strongest argument for the card in Control Paladin is that their turn 3 right now is very lacking. What else is there really besides Follow the Rules which you'll want to save for later anyway? I've seen Shades being played in tournaments but that might have just been Reynard, also it doesn't really strenghten your board either. Harvest Golem?
On the other hand the expansion might bring other, more consistent 3s Paladin would want to use.
Part of it is indeed that their turn 3 play is weak but I think time will show that this is better than 'consistent' 3s.
One strong reason is because this card makes blessing of kings viable. It puts your opponent into a turn 3 dilemma.
Let's say the paladin goes first and plays this on 3. The opponent, on 3 mana, has to clear 3 separate targets or else they risk a charging 5/5 with kings. But killing 3 1/1s, short of a wild pyromancer combo, is really, really hard on 3 mana.
And even moreso its hard to kill 3 1/1s AND pressure the board.
So if you use your turn 3 dealing with the 1/1s and not pressuring the board, the paladin is then allowed to play a power 4 drop. If you don't clear out the 1/1s, the paladin gets to take complete control of the board with a 5/5 charger + weapon.
edit: and even in the wild pyro combo, a paladin is going to be quite pleased that their opponent was forced to burn their pyro combo on turn 3.
edit: and finally, while the dudes don't have charge you can attack with the weapon immediately. So if your opponent plays like an ysera equality + muster is way better than equality + pyro.
edit: god damn I love this card
