Lucky, EB. I killed Direbrew day after day last year and never even saw a mount drop, much less won it. Thankfully you don't need to get it to complete the achievements. And this time I know about ram racing, so I should be in good shape to finish them.
Protip: sell your Brewfest attire back to the vendor after you complete Disturbing the Peace for a refund of tokens, then get the club membership. That'll save you 200 tokens.