And what do you mean by this? If you told me before Punk Hazard that there was no need to go to Wano, I would have told you the same.
There are certain islands that without knowing the reason, we knew that sooner or later we would go. Fishman Island, Wano and Elbaf are islands that have been fixed on the route of the Muguis for a long time.
There doesn't have to be a real reason to go to Elbaf, as long as it's the next Island according to the Log Pose, that's enough. It has been like this for a long time and the dynamic was only changed due to Law. Without Law, we should go back to the old dynamic.
Not to mention that the last Road Poneglyph may be found in Elbaf. Or even if Mom is alive, she might end up there. What you want is to know things ahead of time. And just because we don't know certain things, doesn't mean they won't happen.