The Librarian
Banned
Exactly, she puts on a good poker face during Reach, but she's basically blindsided when the Spartan IIIs show up. Glasslands is her chance to finally confront someone about it. There are certainly some retcons in the Halo fiction by now, but that isn't one of them.
I kind of wish they'd avoided the retconned ending of Reach, as it really just felt like a way to force Reach's protagonists more directly into the chain of events that leads to halo 1-3. It's kind of bizarre; they bring the PoA down to Reach's surface to in order to facilitate Noble Team's mission, but that mission is actually. It felt like a forced effort to tie a neat bow on everything, when really Noble team's story could have been wrapped up just fine without messing around with what was already written in Fall of Reach.just to transport a small 'shard' of Cortana with the research data to the ship, it isn't even actually Cortana, a fact which anyone who just plays the game would be oblivious to
What's worse is that Bungie didn't have to mess with the fiction in order to make the game tie into book. They could've simply pushed back the Saber mission to help defend the Pillar of Autumn as it escaped (while John was getting the navigation data from the Circumference).