User blog comment:FairyRaven/Fairy Tail Chapter 337: The Golden Plains, Review and Commentary/@comment-2214433-20130628095736/@comment-7418318-20130628114443

Okay now I see what you're getting at and I agree with you that the sentence about everything being undone is wrong.

But the idea of the gate acting as an anchor itself does make a lot of sense to me.

That beings are strongly connected to their "origin time" and once the medium which allwed them to visit another time is destroyed, they get pulled back there (or should it be 'then'?), would very neatly explain how the consequences and memories could remain, even though all the timetravelers are pulled back to their own respective times.