Zarhym was unable to accept the award himself, since he was on the other side of the country at PAX, but Game Designer Jonathan LeCraft was able to accept on his behalf. You can read what Zarhym had to say about winning the award over at his Tumblr, and The Daily Blink weights in on the award as well.
We here at WoW Insider extend our congrats to Zarhym, and hope you'll join us in doing so. He's been a great part of the community for a long time, and is wonderful to work with. Cheers!