Correct me if I'm wrong - doesn't that response basically say "Our policy lets us do all the things you listed, but we totally won't, trust us lol"?

And of course yes the cops can read all of it, but "only if the warrant is totally legit".

And warrant requirements are a poor defense: https://www.popehat.com/2014/07/15/warrants-bulwark-of-liber...