Very good point. Can't disagree with you. I am ok, however, with a contacts system letting me specify a single name nickname that it prioritizes in matching / searches.

And I'm probably also ok with the computer knowing as much about me as my cellular provider does, since all that is probably hoovered up already. Why should Siri be dumber than the feds?

To take this further afield, it would be interesting to interact with a "smart" assistant that only learned from info likely to be accessible to third party law enforcement and/or aggregator, as a demonstration of the risk & power.