[bonoboTP]

Well, it kind of is. In my mind, a screen reader should read anything that a healthy human can. Ideally even text in images and any sort of weirdness.

[gumby]

Then again different healthy humans read texts differently. There's no such thing as a canonical reading and any reading bring in prior semantics.

There was a sign posted in the break room of a lab I used to work at. It read, "<long complex equation> is easy for you to read, but not for everyone. Volunteer to read for the blind." It was a good double whammy.