Why is "6th-century Byzantine domes" trending?

Wikipedia Overview

The 6th century marks a turning point for domed church architecture. Centrally planned domed churches had been built since the 4th century for very particular functions, such as palace churches or martyria, with a slight widening of use around 500 AD, but most church buildings were timber-roofed halls on the basilica plan. Early vaulted churches were built in Constantinople and west Asia Minor, with domed churches replacing timber-roofed basilicas in Ephesus, Priene, and Pythagoreion. Domed churches required radically different supporting structures compared to timber-roofed basilicas and new vaulting patterns, such as a series on domes on pendentives, can be determined based on the ruins of large masonry piers and fragments of the vaults. Early Byzantine examples include the cruciform Basilica of St. John near Ephesus and the aisleless twin-domed basilica at Philadelphia called the church of St. John.