This is a screenshot from an ad by Meat and Li…

This is a screenshot from an ad by Meat and Livestock Australia which features lots of different gods who agree that they can all enjoy lamb. Presumably the joke is due to the traditional aversion of Muslims to pork, Hindus to beef, and Jews to lots of things.

It was regarded as offensive by lots of people for fairly predictable reasons, but less predictable was the decision of the Australia’s Advertising Standards Board to ban the ad. 

Enacting legislation of any kind based on people’s feelings (especially feelings based on nothing they can demonstrate) will always be a bad idea. Blasphemy is literally a victimless crime.