async

Why are none of the methods in RDF/JS asynchronous and could we make them
such?

In a recent discussion of the Solid Open-source Tools group
<https://hackmd.io/_jbi_VaRRP69YjJEBdxeDg#RDFJS-Async> (whose members tend
to be heavily invested in both RDF and JavaScript), I had asked whether I
was the only one struggling with the lack of asynchronicity in RDF/JS.
Specifically I mean asynchronicity in the sense of the `async` and `await`
keywords in JavaScript, of methods that return `Promise`s. As an
implementer of software that adheres to the RDF/JS: Data model
specification and the RDF/JS: Dataset specification, I frequently come up
against the problem of using synchronous methods like `DatasetCore.match`
in contexts that favor it nowadays like network IO and background
processing. My fellow implementers/users of RDF/JS reported that they
struggle with the same issue and tend to go through hoops to make RDF/JS
work in 'modern' context.

My question is generic and open: Was there any thought given to this? Was
it discarded? Or have we just come some way since? How would we go on about
adding asynchronicity to RDF/JS? Is there history worth reading about the
topic?

I have searched the mailing list and GitHub for relevant information and
haven't found any. I apologize if I'm reopening a long dormant debate and
would appreciate pointers to previous discussion.