I don't feel like the crew should be flipping out about Zoro and Sanji either. Those two are going to have a few chapters testing out their opponents and then a chapter each finishing them off/kicking them out of Elbaf. The crew knows this at this point.
Zoro and Sanji know this, and have been nothing but cool this arc. Zoro wants to cut someone and Sanji wants to spread love.
Robin is around, chilling, reading books, saving kids, getting intel.
They're all mostly worried by what kind of big weirdo Luffy is going to chose as their next crew member