This one is out of the Grex that produced Tillandsia Bird Rock on Steroids and T. Fat Boy (T. streptophylla x roseoscapa).  This plant is not as "fat" as T. Fat Boy or T. BR on Steroids. When I named it several years ago, it blushed rose colored when blooming. It is more reminiscent of a giant T. caput-medusae, but not. The petals are creamy-white.