It's a typo unfortunately. It does indeed return via Dublin from LAX. 5th freedom is being utilized and approved by IAA. March is rumored the start date, with 3 flights departing weekly. Official announcement should be released soon enough one hopes.
Just to note that ET operate the long range B777 with the GE engines producing 115,000lbs of thrust. I would hope the airline has looked into the performance and payload for this route.