I didn't vote. I simply can't make up my mind if there is a deliberate BBM reference or not.
To me, it screams BBM, but like Steve, Lynne and Amanda already said, BBM is so hard-wired in me, maybe it simply isn't there.
The similarity to Jack is really obvious, I think. But on the other side, the reference to the bar scene and losing half the herd of sheep is something only Brokies would get. 99% of the people would be oblivious to it - so it wouldn't make much sense, would it?