Movement speed debuff

I find 5 seconds to debuff isn't nearly decent enough because this skill knocks them down, and they stay down for about 500 miliseconds AFTER 2 seconds of stun (based on the summary).

Meaning when you use this skill, the time the enemy will be moving slowly is about 2.5 seconds?

Now that I think about it... is it possible that the "stun" is caused by the slowdown? I've noticed that their animations slowdown after being hit by Dischord, including the knockback part.