Warriors also have limited utility and options in combat. Knock Down is the flavour choice they have, and them having a reliable way to cause it is fine by me. Other CC being nerfed is because a mage can toss two magic spells in one turn and do big damage on top of the guaranteed stun.
I think the argument really is that Battle Stomp is the one ability they have that is unique and works consistently. Taunt, provoke, deflect, etc all are very situational and unreliable.
