Gay me up, Scotty

In all fairness, Siri is clearly labeled as 'beta', which essentially means it isn't ready for public consumption. This is unusual of Apple but shows how excited they are by the new feature which is, joking apart, pretty impressive. That said, it does seem that it's early appearance is perhaps more intended to impress with it's potential and, more often than not, amuse with it's rather poor grasp of it's master's dialect.