I think a lot of the grimoire is worded in this open way because the story is a bit loose, but you have very good game creators working for it. By creating lots of beginning ambiguity, you save yourself time in the beginning and you can also take the story into different directions when you need to.

Also Brother Vance calls the Speaker a charlatan if you sit and listen to him in the reef but Cade also warns about being used by the Awoken. It seems like there may be a little distrust. The Agents of Nine. The Grimoir is full of contradictions. Is the Stranger part of the Nine? It was Rasputin that nuked everything to "save" it from the darkness. Why do we trust this thing again? The Vex turned Mercury into a machine. The Hive tore into the Moon. The Cabal ah they have good tactics. It does seem like we cause more problems than we solve. "You have woken the Hive!" We killed Crota which brought Oryx. We brought the Garden to the surface where anyone can get to it. We killed all of the ranking Cabal in the system. Who knows what that will bring. We turned on Rasputin's array. Now every species except for the vex has breached him. Omnigul breached him, then the Fallen, then the shank, then the Psion Flayers.

Thanks I knew it was from somewhere