.... I don't want people to get comfortable with people thinking policies/bills/etc are the right way to protect privacy.
Far better, for privacy, if technological solutions (email encryption) protected the privacy of email.
If it's just protected with bills like this, it does nothing to stop programs like the DoD/NSA's "collect everything" projects; and from there it's only a small step for one agency to assist parallel reconstruction to get around the warrant.
Better for everyone's privacy if the bill stated "You have no expectation of privacy for unencrypted email. Any unencrypted email is free for anyone - law enforcements, ad-agencies, spammers - to read. If you want it private, encrypt it.".
The tools exist (GPG, S/MIME). It's just that no-one uses them because they trust policies to protect them instead. If the policies would change, every corporation would insist on encrypted emails by default -- and the email tool vendors would quickly make that the easy/default option.