Death Knight in PvP

Yoo, i don’t play alot of DK, i start by saying that.
But is it not something clearly wrong with Frost/Unholy when Blood is currently the highest rated DK specc in 3v3 EU?
Or is Blood just broken?

because we sucks, in every aspect.
Our pressure is not instant, takes time to build up. That combined with our mobility issue. Not to mention our core abilities and cds doing laughtable dmg. The pressure coming from Horsemans, which sometimes living their own life even. So it can happen a perfect setup is ruined because those randomly chosing other target.

And main reason why blood is better is that we are kinda free kill. and blood is not

I have noticed the horsemen when I face a ubholy. Sometimes they attack me ( the healer ) when im 30 yards away.

Frost DK needs a MS effect aswell. Feels like it at least.