Particularly for vector-based animated movies, can achieve much higher quality-per-bandwidth than compressed raster graphics, and are future-proofed to automatically handle higher video resolutions.
This part itself is probably a lost art forever. As are many things that required great efficiency. Apart from a few embedded specialties. I feel the same pain though, watching a HomestarRunner video or something by means of a 200MB video when I know the SWFs were like 100KB.
yeah, a lot of flash content that was SVG exclusive can go up past 4k and look stunning, and flash was the only one around then (and debatably, now) with an editor to let someone leverage that
