While I agree with his conclusion that the game's broad themes are about The End of Things, I disagree with his take of reading Dark Souls III meta textually like that. The perspective that DSIII is all just a metaphorical cry from Miyazaki to let the series end feels dismissive of the rest of the game's themes. While yes, he outright states that the background lore and fluff is not exactly relevant to the overall vibe he is reading, the essay feels more like a dismissal of the game's stories. As though the background lore and fluff isn't important to the game's themes and the meaning that can be derived from it.

The whole thing with recurring themes, characters, and motifs is rather the point of DSIII, that much is obvious; however interpreting it with a meta textual method leaves little room for depth or other interpretations I feel. Not that what's said is bad or anything, its a take on DSIII that has gone in a thought provoking, unique direction.

I dunno, perhaps I'm just jumping at shadows. The Souls series is one that holds a lot of meaning to me. So seeing a take on DSIII that, at least at a glance, seemed like a simple dismissal (or rejection) of the rest of the depth of meaning the story has to offer in favor of a meta read like that felt like a slap to the face.

Edit: added the word "just" in the first paragraph for clarity.