As I have said before, its all about where you place the games on your timeline. I believe that in most cases, styles (looks) do matter. For instance:
My Timeline
............/--WW/PH--ST
MC--OoT
............\MM--TP--FS/FSA--ALttP/LA--OoX--LoZ/AoL
Chronologically, Zelda's art style didn't...