It may be that with fewer color transitions, trim pieces of any one color will be larger, ultimately reducing the number of pieces in the interior.
Look at the front door panels of the Gravity and the Air. Starting at the window sill of the Air, you've already come across four different materials by the time you get to the armrest, which is yet another material. On the Gravity, it's only two before you hit the armrest.
View attachment 18689
View attachment 18690
BTW . . . I, too, love the dark front / light rear color vibe of the Air and hope it remains part of the Air going forward. But I sort of get why it might have been a bridge too far for attracting some of the SUV demographic.