[ShroudedNight]

It sounds like the author wants a protocol that allows for arbitrarily-sized datagrams, with the ability to interleave the transmission of those datagrams across a some shared master connection.

From my relatively-inexperienced perspective, notwithstanding the widespread protocol ossification of Internet network infrastructure, the underlying MTU for each connection seems to be the primary constraint that any viable alternative must deal with effectively. This article did not seem to discuss MTU considerations at all. It's hard to take a protocol argument seriously that neglects to deal with such a fundamental constraint of network infrastructure.