So I see a lot of people debating whether this should be tagged yuri, and I understand the wish to be inclusive to ace folks. They also deserve representation and don't get much of it and I'm old enough that my bisexual ass remembers how much that can hurt.
That said, there are a bunch of series on this website that forewent the yuri tag because the primary couple never crosses the line from friendship to actual romance, even though there are strong romantic overtones. Often the characters are even clearly life-partners who fully intend to spend forever together, but if they don't kiss or at least declare their love and do some lewd lewd handholding, it's not "yuri"
Should Stretch have a yuri tag? It's a "relationship between girls." Should Nettaigyo wa Yuki ni Kogareru? New Game? Shinmai Shimai no Futari Gohan? Ayakashiko? Living with my Brother's Wife? None of those are tagged "Yuri" (even though in some cases there are explicitly gay characters) because their main narrative is not about explicitly romantic relationships between women. A lot of series on this site sit untagged as "Yuri" until you get a direct confession or explicit indication of romantic interest, but here is a series about a specifically non-romantic relationship that had the tag I think from the start.
I want to be clear, I'm not saying this shouldn't be tagged yuri, nor am I saying those things shouldn't be. But there's an inconsistency here, and It's worth asking what the tag is for, and how Yuri is defined. And if you're gonna define Yuri more broadly than the site tends to, that's okay, but then there are probably a lot of things that should be conciously handled differently WRT other series.
Tags serve two main functions, in my experience. They help people find what they're looking for, and they help people avoid what they aren't. Yuri is such a broad tag and such a huge part of the site's identity I strongly doubt anybody is using it to know what to avoid. So then the question becomes "Is this series what people searching the Yuri tag are looking for?"
Romance is the same way. If somebody searches the "Romance" tag, are they going to be satisfied or feel baited by this series about two asexual people in an aromantic relationship? Yeah, sure, there are -other- romantically inclined characters in the series. Are -any- of their romances central enough to the narrative to be featured as tags? Star Wars has romances in it, that doesn't mean it would deserve the tag.
I'm not saying the story is bad. I thought it was an interesting read and insight into the ace/aro experience. The ending falls a bit flat, but I recognize that might be because I'm not the target audience. But as someone who comes to this site for same-sex romance, the tags sure are aimed at convincing me that this is directed at me when it isn't.
Either way, there should be an ace tag, like, yesterday. I'm actually shocked it isn't already a thing.