Destiny 2 just dropped its biggest twist since Cayde-6 got killed off and I'm a mess

pcgamer.com:

When you are many thousands of hours deep into a six-year-old videogame, it takes a lot to surprise you. But the today's Destiny 2 season finale did just that. I'll explain why in a second, but first here's the obligatory SPOILER WARNING for details and discussion of the final Season of the Seraph mission and accompanying cut-scene which is embedded further down the page.   

To play the content you need to visit the H.E.L.M. and pick up a quest called Final Dawn. Here the Warmind Rasputin explains that Eramis, the Fallen antagonist from Beyond Light, has accessed Rasputin's ABHORRENT IMPERATIVE protocol, which involves shooting The Traveller down—that's the enormous orbital golfball which gives the guardians their powers— using a network of weaponised satellites. 

To foil the plot your guardian must infiltrate the Seraph Station in near earth Orbit so that Rasputin can destroy the network and delete himself entirely. His reasoning being that he's such a dangerous weapon that his mere existence threatens humanity. Despite the protestations of Rasputin's mentor and only friend Ana Bray, the mission goes ahead and sure enough ends with the AI sacrificing himself. 

Before I get to the massive narrative implications, let's note for the record that the mission is an absolute banger. Bungie was talking up how it plans to make the base game harder in Lightfall, and this felt like a positive taste of that in practice. Your power is capped below the recommended level of the mission, meaning enemies (which are also more aggressive and heavily shielded) can't just be face-rolled. I particularly loved how my painstakingly-crafted build, using Gyfalcon's Haulberk and Ruinous Effigy, actually felt worth equipping.

Following the boss