On CC, we have Low Blow for stun. Status baked into damage combos and gap-closers gives less control and kind of negates the entire thing. Holy stun is great, but because Holy is WHM's main AoE DPS, the stun is just there. If you want to use the stun strategically you don't have many options other than standing around and doing nothing until the moment when you want to use it, and even more so if enemies gain resistance to effects. If instead we had dedicated CC abilities, that frees them up for interesting use.