We (Comcast/NBC) run 2s segments for our video streaming service which is... substantially larger than this. High latency mobile networks on clients which don't

We (Comcast/NBC) run 2s segments for our video streaming service which is... substantially larger than this. High latency mobile networks on clients which don't do keep alive can be _somewhat_ problematic. The best fix for that is just to have a very fast/close CDN edge node.