Would've been nice if the actual show acknowledged Plus during Frontier, rather than waiting for an alternate retelling with the films. While on the subject, I miss when films for mecha series still had something to do with what happened on the shows, rather than always being an excuse for an alternate continuity (even for that Genesis of Aquarion show, Kawamori wound up doing the same thing).
Of course, at the rate that Delta's going, I might not actually mind seeing them change some things up for once. Maybe then they can make an effort to pretend that Mirage actually matters in the story.