This is a hack to be able to embed design within a tool that was never meant for graphic design. If github readmes where meant to be both accessible and designable they would not be just markdown/rst.
Your suggestion means a11y software having a hack that goes against the spec to enable a hack that was used to circumvent a platform that knowingly crippled it's document representation because they thought it would be used for mostly unstyled info.
It's almost 2021. Accessibility software can use ML and OCR to provide a semblance of navigable semantics for visual-first media like images. See Project Naptha [1] for one such example of adding OCR-powered text detection to images encountered in your browser.
In the specific case of SVG, the text can already be fully semantically extracted with very little work.
Hey, if we really work at it, I'm sure we can make it impossible for anyone to use the Web without sending all of their information to an untrusted third party who has every incentive to violate your privacy, but won't, because they say they won't.
> It's almost 2021.
Indeed. We should have gone a lot further down this slippery slope by now.
(Offline) OCR models should really be everywhere now, just like offline speech-to-text models are. It's kind of surprising that it's not just "a thing" built into every OS.
1) New technology exists
2) Accessibility nerds tell everyone not to use it, because it's not supported by screen readers
3) Everyone uses it anyways
4) Screen readers support it
5) GOTO 1
It seems very similar to people who think they can fix climate change by yelling at enough people not to buy certain things.