[quote=Yog Sothoth]
But the Sanin are powerful shinobi who have techniques that are inspired by animals so they are different in some ways compared to other ninja
[/quote]

The summons of Orochimaru, Tsunade, and Jiraiya did little to inspire 'Sannin' as a title. You don't need 'Sannin' as a title to be powerful AND have techniques that use special summons. Hanzo gave that to them because they were an incredible team and pretty much unmatched in their entire generation. It was a stalemate in favor of Hanzo, but Hanzo was that generations Itachi, not literally of course, but in terms of hype. 

I don't know who'd willingly give the title 'Sannin' to people trying to take over the entire world rather than protect their village. Title obsession is a little crazy right now...

@Chev, I don't know anything about safe houses, I'm not really using them. Interact with people or prepare on your own.