[zelly]

I understand WAI for articles and "document" web pages, but does anyone who uses these technologies use them on web apps? Is this even remotely the audience for most of these SaaS SPAs?

[danShumway]

Ideally we'd like SaaS SPAs to be as accessible (if not more accessible) than articles/documents.

The WAI looks mostly aimed at applications anyway, I suspect in part because there aren't a ton of compelling reasons to use WASM for a static page.