The move to more traditional sanctuaries is not to create a "look at me" moment but in reality it is the opposite.  This is also a part of the move to ad orientem.  As priests we want to be forgotten and allow Christ to be center.  And Joseph Ratzinger's insight about modern church's circularity being evocative of the worship​of the golden calf, "the worship of the worshipping community" is very persuasive to millennial priests. Plus we now live in a post modern world.  Modern churches are as dated to the eyes of millennials as are traditional churches.