It's closer to 7 and a half months, and considering the previous update was 9 months before that message, and them saying the game is still in development and not saying a new update is coming soon or something similar, I don't think it would be fair to assume it's been abandoned. They most likely are a one-man team, and in the message they say "and other reasons" — I think there's something personal in their life affecting the progress.
Whoops, I looked at the date of the original message. Doesn't matter though.
While I may personally agree with you, that's not how the Abandoned tag on this site works.
I'm too lazy to look up the exact rules right now, but basically the tag gets applied if the dev hasn't communicated within the last 3 (or 6?) months. Even if your posted message would be taken in consideration, it's older than that. The latest posts on their Patreon/Twitter are from November 2023.
The rules being the way they are, you just shouldn't take that Abandoned tag too seriously. On the other hand, while I believe the dev when they say they wanna keep working on it, it doesn't seem to happen at any noteworthy pace. Many devs make many promises all the time. As long as there are no new updates/reports from the dev, I'm fine considering this game as good as abandoned.