Guys, this is not a timeline thing. This is a decade the show is made in, and reigning production design themes. This show looks like the Kelvin movies because it is being made in 2017 and those movies were made in 2009-2016. Look at the Star Trek 5 bridge vs the previous 4 movies. Suddenly it has carpeting, and the controls are all touch screens. Why? Because that was what TNG looked like, even though TNG was set 80ish years later. That's what production design looked like.
In a Mirror Darkly mimicked the look of TOS because it was a loving look back done for nostalgia. Even though updated slightly, it STILL looked like it was created 40 years previous. Why? Because it was. You can not expect any show that intends to draw a modern audience to watch a set that looks like some press wood slapped together and painted with primary colors, or to use printouts instead of on screen displays, or what have you. It's not practical. They also, for the record, are not going to smear the camera lens with vaseline whenever they are filming women.
So the show is going to have a modern sense of production design, and in our heads, we are going to have to come together as a group and pretend that it looked this way all along. We can do it. I have faith in us.