The DC is a lot more watchable. The biggest benefit is the CG Sequences, which are used to replace some of the 'staring at the viewscreen' type reaction shots.
As for why it wasn't remastered at 4k, let alone 1080p back then, my guess is that the cost of rendering CG above DVD resolutions was a major factor.
As for why it wasn't remastered at 4k, let alone 1080p back then, my guess is that the cost of rendering CG above DVD resolutions was a major factor.