Indeed, in that they have multiple SVG versions of the same icon (name) for smaller pixel sizes - 16x16, 22x22, 24x24, 32x32 - the last time I checked.
That seems like the appropriate compromise, SVG for various optical sizes. The analog example that comes to mind is Dr. Seuss books. The Cat in the Hat is much less detailed when he is far away, and has very detailed pen work close up.