This is a disgraceful smear. The phrase "expectation of privacy" occurs exactly once in the cited filing, and that's in a quote from another case. It is used to

This is a disgraceful smear. The phrase "expectation of privacy" occurs exactly once in the cited filing, and that's in a quote from another case. It is used to argue that if someone (not necessarily a Gmail user) sends email to a Gmail user, that sender ought to expect Gmail to process the email. What exactly Gmail does with the email is between the recipient and Google.