My main gripe with it isn’t that it’s metatextual, but that the metatextual is divorced from the narrative, which just makes it feel very shallow and surface-level.
NGE is certainly very metatextual as well, but IMO it’s much more effective at weaving the metatextual elements into the narrative. NGE can still be enjoyed as a stand-alone story without the metatextual elements; the metatextual reading merely
enhances and informs the purely textual reading by adding another layer of interpretation to the story. It isn’t all there is to the story, and it certainly doesn’t contradict any of the purely textual themes and ideas. An easy parallel is Alan Moore’s Watchmen - it stands on its own two legs as a self-contained narrative. Being aware of its metatextual commentary on the superhero comics of the time (for example, knowing that the Watchmen were actually supposed to
be established heroes instead of new characters that play on existing archetypes)
enhances and reinforces the narrative, but isn’t required to enjoy or understand the story on a purely textual level.
IMO, the Rebuilds simply does not stand on its own as a coherent narrative outside of being Anno’s retrospective on NGE and EoE from his current perspective and mental state. There are so many elements that just do not make sense on their own when considered outside of the metanarrative. Mari is just the most emblematic, being a character who can really ONLY be interpreted metatextually, and brings nothing to the table narratively at face value because she has so little screen time and is so poorly developed. Purely narratively speaking, she’s little more than a spouter of vague expository dialogue and an executor of Deus Ex Machina to move the plot along.
I think there’s one big way the metanarrative reading
actively undermines the face-value narrative, too: taken at face value 3.0+1.0 is theoretically about Shinji reflecting on and making the necessary changes in perspective to “fix” himself, and that this is what brings about a “happy ending”. When considered metatextually though, the face-value narrative falls apart, because what separates the outcome of EoE and 3.0+1.0 isn’t primarily the result of Shinji making different decisions, but rather of circumstances that are completely out of his control. The bleak ending of EoE doesn’t arise because of Shinji pushing away the people who could be there to help him at his lowest - it happens because
he literally has no one left, in contrast with 3.0+1.0 where he has plenty of people who are endlessly patient in helping him through his “recovery”.
This is fine metanarratively when considering 3.0+1.0 as Anno’s reflection on the bleakness of EoE and his mental state during that time, but the narrative and “moral/message” implications are highly questionable once you bring in the metatextual information, because the moral gets recontextualized from one of introspection and self-actualization to “lmao, just have a support system, lol”, because while the self-actualization is still important, the difference between NGE and the Rebuilds isn’t that NGE Shinji doesn’t go through it - it’s that he’s not even given a
chance due to the wildly different circumstances.
I'm pretty sure that every meeting Shinji had with Mari has been depicted in the movies.
Dunno where you got that I was implying there were offscreen interactions between them; the point of the passage you quoted was that Mari and Shinji share so little screen time before the ending that it is impossible to characterize what their relationship is intended to be from those prior interactions; and that her characterization in the last 15-20 minutes of the movie basically comes out of nowhere, and is not a logical continuation/extrapolation of her characterization up until that point.
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As a side note, I think there’s a case to be made that
Misato, not Mari, serves as a better “guide” to Shinji out of Eva, both narratively and metatextually. Narratively, Misato overcoming her guilt over her inciting role in cheering Shinji on rescue Rei (and thus being at least partially responsible for N3I), and forgiving both Shinji and herself, and then sacrificing her own life (which is already on borrowed time from the bullet she literally took for him) to pull him out of the negative zone works as a resolution to her character arc in the movies, while also being a neat bookend: Misato is the person who brought Shinji
into the world of Evangelion, and is his commanding officer throughout at least 1.0 and 2.0. It’s narratively fitting for her to be the one to dismiss him of his office and return him to a world without Eva. Metatextually, this would make a callback to End of Evangelion, where Misato similarly takes a gut-shot and with her last dying breath delivers Shinji to his doom, without ever resolving any of the guilt she feels over her horribly botched “parenting” of Shinji and Asuka… except this time the scenario is twisted around, and her dying act is to deliver his salvation. Plot-wise, there is no compelling reason why Unit 8 specifically is capable of traveling to (and most importantly returning from) negative space - it’s purely just a writing convenience - so it would be easy enough to say that whatever arcane magic powers the Wunder is capable of delivering Shinji from Instrumentality.