Six Fronts did happen before Twilight, Gjallarhorn was not mass deployed? developed. and was a gift. Saint-14 we dont have confirmation on. Commanders we dont know anything on. Traveler inert since Collapse, the Techeuns have powers, Crows MAY have powers. but nothing showed Mara having powers herself. everthing except for the Techeuns powers etc has been confirmed by Bunige in a recent Game Informer article (obviously not knowing Saint-14's status and the Commanders havent been confirmed in any sense) But Techuens have powers, that's not interpretation.

What part of "in game text, grimoire, and am actual Bungie conformation is open to interpretation. They are literally telling you. Its like when people say Dark Souls has no story. The story is told in the descriptions of items. You need to look into it. They wont spoon feed you the answers.