Yep, this unfortunately is true. The Live Region spec seems to promise much on the surface but often fails in complex real-life situations. A developer who is not familiar with the accessibility domain obviously cannot know all the intricacies. And so we get what we get... I find the proposed advice is more often the better approach than I would like to admit! Especially that it allows the developers to control the screen reader output .

@vick21 Yeah, the ARIA spec is really for user agents. I’d link to think years of WHATWG HTML being wrong about browser support (and it’s driven by browsers) would have taught authors a lesson, but definitely not.