Zenit has an interview with Galveston-Houston’s retired archbishop, Joseph Fiorenza on the new co-cathedral recently dedicated. He was asked about the principles for the design:
We instructed the architect that we wanted something that was simple but beautiful: elegant and noble, that’s what’s attractive.
I think the exterior does that, with its Romanesque and modernistic features; it still captures the traditional cruciform architecture but with some very modern touches which I find powerfully simple and beautiful.
Our instructions for the interior were the same; we did not want Baroque. We wanted the height of it to attract you to the transcendence of God, but still focus attention to the altar, where the Mass is celebrated.