Then why should it matter? Revisited literally looks better then the 4K release of ESB (which looks so desaturated it looks like it was graded by Zack Snyder). The upscale also looks perfect at 1080p. So there’s no issue.
I think a lot of people (myself included) often just automatically assume a 4K version will clearly be superior than anything in 1080p. Absolutely not the case here. There’s really no comparison between Empire: Revisited and the current 4K edition on disc. A testament to Adywan’s amazing skills and uncompromising attention to detail.