Just finished reading this series, and while I'd already heard about Pocha Climb as that one bouldering manga that got axed, I still wasn't expecting to get this invested in a story that I knew would be incomplete. Seeing the chapters just... stop existing even as the story picks up steam was pretty painful, and I'm still rather baffled by why a series of this calibre couldn't find long term success. Was the subject matter too esoteric for a mainstream yuri magazine? Could it not compete with the various other climbing manga already out there? No matter how I look at it, the axe seems like a bolt from the blue, and all I can hope is that Mintaro gets another chance to display their talents.
Apparently, there seems to be an Extra Edition released in Japan that's generated a lot of buzz- I heard someone on Twitter describing it as a 'Bible' for fans of the series. I'm not sure if it fleshes out the story and gives us more content, or if it's just a flashy rerelease with extra art, though general discourse (as Google Translated by me from Japanese Twitter) seems to suggest the former. Hope someone picks it up if that really is the case.