nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqxed99rf8rwyf22ery4rrutnzjcrqy6ha6yh3cykjh247xd2lkjssec4tpe (nprofile…4tpe) They don't like that it requires a full DOM model to render an image.
nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqp6plcctn2d2fwtdfhpp8kgezjfpfklvz2nkknkw94gwvam64q4pq2ja0pz (nprofile…a0pz) was tasked for a while with coming up with a standardized subset of SVG that could be rendered much more efficiently with fewer potential security leaks. But that project stalled when all SVG standards work did, and he's doing unrelated stuff now, so not sure if any change in SVG support is likely.
For icons, I still think they could render the image once when the web page is open & cache as a PNG.