SVG is carried forward by a few determined people against all odds (see e.g. this tale by Amelia Bellamy-Royds https://codepen.io/AmeliaBR/post/me-and-svg)
IIRC the CSS working group is just slow for various reasons (from disinterest to lack of people to drive things forward).
Some parts of working groups and standards committees have been completely taken over by Google that just pushes its own agenda.
And so on.
SVG is carried forward by a few determined people against all odds (see e.g. this tale by Amelia Bellamy-Royds https://codepen.io/AmeliaBR/post/me-and-svg)
IIRC the CSS working group is just slow for various reasons (from disinterest to lack of people to drive things forward).
Some parts of working groups and standards committees have been completely taken over by Google that just pushes its own agenda.
And so on.