Thanks for the detailed feedback, it's great to hear that it scratches that specific itch haha. I definitely wasn't expecting this to resonate so much with people, and it's a big motivation boost to make more.
Good catch on the ultimine description - was planning to change it, but now I've seen a couple playthroughs where that tooltip avoids a *lot* of frustration from people getting there for the first time. Might just leave it as a "hey if you're paying attention here's some bonus info" kind of thing.