I just know if you have the same problems with the appearance of the cheetah? The curse and the active bleeding daze appearance
Stop me if I'm wrong but I think that only instantaneous damage is supposed to enable daze
In the battlefield, the regen and berserker also activates the daze effect describe the appearance ...
Source : http://www.wowwiki.com/Patch_1.9.0
Aspect of the Pack and Aspect of the Cheetah - Periodic damage will no longer trigger the Dazed effect.