Quite the contrary, they look spectacular:
https://forum.blu-ray.com/showpost.php?p=17513551&postcount=69700
https://forum.blu-ray.com/showpost.php?p=17513638&postcount=69701
The 2020 blu-ray images are nice to be sure, but does anyone else think these frames look a bit warm on the colour balance and lacking in contrast?
I guess those are nice problems to have in a way, not too much of a problem to solve.
Look at the final screenshot from Empire. The 2011 BD screenshot is closer to the scene as I remember it from all the physical releases up to 2011 and stills from the film. The 2020 frame is much more grey-blue or ‘Jim Cameron Cobalt’ maybe 😉