How far did you get without the hounds combo in your deck?

I've been tracking some hunter runs:

No hounds combo: 3-4-6-5-6 =====(4.8 avg)
Hounds: 12-8-8-7-8-11-5 =====(8.4 avg)

YEP. I don't find these stats to be true for any other arena class. Is this just a fluke?