Post author here... My dream: a grammar or specification for org text. So that someone can make a self-contained parser library (I'm not smart enough). So that others can embed it in all their tools, and so that someone can make an LSP for org text.

IMHO, the integration of org-mode into Emacs is a double-edged sword. Great for me, because I get batteries-included writing support. /However/ terrible for distribution. The source code of the canonical implementation is the specification. Unfortunately, it is hardwired to the Emacs binary. That fact alone makes org text verboten to most of the known universe. Even if that weren't true, the absence of a standard makes it incredibly difficult for outsiders to maintain feature-parity of their own implementations with the canon, and with each other.