Although personally, I am a great fan of the Gothic style cathedral, I can understand where, in this country and era, and in a state with the climate of California, one might want to design something more light in feeling.
I think that cathedrals like the one of the Immaculate Conception in Washington, D.C., and of the Shrine of the Blessed Sacrament in Alabama (the one built by Mother Angelica of EWTN) do just this--they interpret the traditional in a modern way. They use light colored marbles, gold, and mosaic. They take historically proven architectural and design motives, and simply rework them. Many Greek Orthodox Churches in this country have done that successfully in their interiors, although the exteriors are not always a success in reinvention.
I firmly believe that unless we are building skyscrapers, which are now proven modern architectural innovations in their aesthetic appeal, that we should stick with the basic shell of historical architectures. There are many talented architects who can work and innovate within those parameters. The people in charge obviously do not have respect for the past, and thus, did not ask the architect to incorporate any traditional European Catholic historical elements....(and there are so many styles to chose from, as many Catholic countries in Europe have their own style).
This church, unfortunately, looks a bit more like a luxury residential or office building, or even a mall, than a cathedral.

Alice