User blog comment:FairyRaven/Fairy Tail Chapter 337: The Golden Plains, Review and Commentary/@comment-60.53.102.237-20130703114213/@comment-7418318-20130704141034

In future Rogue's timeline the gate was opened, just with seven years delay by Rogue himself (unless he found some other way to travel through time), thus any feedback effect might still have reached his timeline.