I think honestly the problem is a lack of tech literacy. I've seen spec sheets that are glorified database and json schemas in a spreadsheet, put together by BAs and translated by hand.
It could be done directly if every BA had enough programming knowledge to put together schemas and run CLI tools to verify them.
> had enough programming knowledge to put together schemas and run CLI tools to verify them.
That's quite a lot of programming knowledge. It makes some sense to decouple the business-oriented from the more technical roles - BA's trying their hand at coding is how you get mammoth Excel spreadsheets and other big-balls-of-mud.
So I guess I still see declarative languages as being part of the tech stack and something tantamount to AI being needed to handle all the "do what I mean" that accompanies business process documentation.