It reminded me a bit of the Star Wars Special Edition fiasco - puttng 90's CGI into a 70's movie looked bad at the time and terrible now. The footage I saw of this gave me a similar mismatched feeling though I agree it's technically impressive.
Speaking of, I think this glossy look would be perfect for a game like Dark Forces [1], rather than Doom. I feel most surfaces in Doom doesn’t really look like they would be so glossy.
But imagine a raytraced imperial starship hangar in Dark Forces instead.