Hmm, well Dazed is still a pretty serious condition, but she can still defend herself, and she's got pretty good defenses in general. It'd be a shame to lose a round of actions, especially with the other demons moving off with different orders, but I'd also hate to not have Mystic Aegis on-hand later when I really need it more.
Also, if you wouldn't mind rolling the SR, just in case, even if there's only a 1 in 20 chance of the spell failing against Dez. You don't need to post it, I trust you enough, I'd just like to avoid making assumptions.