Yes, SVG should be replaced with something lighter for desktop icons, UIs...
But if you compare filesize you should compare SVGZ with with your files.
The example with the invalid SVG color "#FF000080" is a bad example. Different handling of invalid files is not a bug but a design decision to show some thing at all.
Btw. All well known vector file formats have the tendency to become to monsters over time. Ave a look at PS, EPS, PDF and font file formats. And most of the time Adobe was involved.
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The example with the invalid SVG color "#FF000080" is a bad example. Different handling of invalid files is not a bug but a design decision to show some thing at all.
Have you looked at the old SVG-Mobile?
w3.org/TR/2003/REC-SVGMobile-20030...
Btw. All well known vector file formats have the tendency to become to monsters over time. Ave a look at PS, EPS, PDF and font file formats. And most of the time Adobe was involved.