My two cents: 1) Lack of reliable real time ability to detect device and compute size. 2) Increased computation complexity of what to render - why put that loa

My two cents: 1) Lack of reliable real time ability to detect device and compute size. 2) Increased computation complexity of what to render - why put that load on the server when devices are now commensurately as fast - or even faster given the trend to distributed services that maximize network throughput over power. I'm not even sure why it was so popular in the first place; client server separation is a good thing, IMHO.