I've been extremely annoyed by DRAKON cultists since 2005 (no, I'm not joking). They were basically claiming: "We have a tooling so powerful that it's used to produce ultra-reliable software for spacecraft, including Buran". When asked to show it, they replied that it's all super-secret. "Buran" is a Russian "Space Shuttle", btw.
Back then, my parents were still working in a factory that produced some of the "Buran" components. So I asked them to try to get me in touch with software developers who might have worked on anything related to "Buran". They got me in touch with a couple of developers responsible for parts of software in the ground monitoring system, but nobody heard anything about DRAKON. So it might have been used somewhere, but it certainly was not super-important.
Since then, DRAKON cultists have not produced anything significant worth of value. The largest project is, probably, the editor. And if you look at it, it's just a bunch of scripts where Drakon doesn't add much clarity.
You can also see that their tooling has zero practicality, it makes any sort of collaboration impossible. Drakon files are binary and can't be diffed sanely.