That might possibly be the case for some people, but it isn’t for me personally.
This is about lights not being as bright as they were (they were, the game was fine before, I didn’t just start playing when it was updated and say, graphics bad), it’s about a change that ruined some builds.
The devs themselves just admitted to some of the problems themselves, so this is an issue.
In regard to dark colored blocks, lighting has basically been removed intentionally from them, so they become dark voids basically.
You’re not the only one with a decent gaming rig. If you haven’t yet, read the devlog about what issues have been identified.
I respect that you’re happy with how the game looks now and the changes haven’t affected your build(s).