What did the traveler do in the fontaine AQ anyway?
>saved navia from getting dissolved purely by accident (a mistake, honestly)
>fought the whale with neuv's buff (neuv really should've been able to fight the whale himself)
>led the trial against furina (someone else would've done it)
>some other stuff
I think everything would've happened like it did regardless of them being there or not due to the prophecy and focalors' plan.