Um, yeah. Have you seen the new Material Design in Chrome? Nuff said. Esp if you use bookmarks bar and have it set up with groups. For some reason every mockup doesn’t actually show it fully loaded. Butt ugly.
And by the way my critique is actually aimed at just what you repeated, the separation of a “design potential” from “actual designed interfaces” how these two are seen as something different is frankly bewildering. Actual designed interfaces as a sum, are indeed the design potential of a framework, idiom, whatever.