Honestly that plus the awful tiling behavior at relatively low resolutions should have been enough to disqualify it from being mangled into something resembling

Honestly that plus the awful tiling behavior at relatively low resolutions should have been enough to disqualify it from being mangled into something resembling an image format. It was made and tuned for movies, not stills. But its image format gets to inherit all of the drawbacks of that initial use case, including awful encode/decode performance.