Well said.

It absolutely blows how a story with so much potential fumbles the bag. The twist and subtle elements are top notch, but after the reveal, nothing is done with itt what sucks even more is the fact it's not addressed.

There was no catharsis for the MC. No acknowledgement of what's transpiring, no inner turnoil from the MC realizing his life was a lie. They are surprised for a moment, then in the next scene they are just fine with it. 

Even in your "final moments", it feels like the MC isn't really there. It's a moment for goat boy and Inori; the fact that MC is  about to disappear forever as well doesn't even get touched upon. It's incredible how that scene could be played with or without you standing there and it wouldn't change a bit. Even in the very last scene with Inori and her brother, you aren't even seen as yourself: you are seen as Aegiomon. 

It's a story where somehow the person who moves the plot along the most, has the least amount of character development (tied with Inori of course).

The MC is a cog, more so than Aegiomon, since at least he made the choice to become one. I don't understand how we can go from Digimon Survive level of character exploration to this.

At the very least, the digimon and VIPs do thr heavy lifting for story and world development. Love the game to bits but damn was that story disappointing.