The premise may be valid, however the authors only examined a network trace for one game. At best, they've proven only that game's use of TCP is unwieldy and in

The premise may be valid, however the authors only examined a network trace for one game. At best, they've proven only that game's use of TCP is unwieldy and inappropriate. A more appropriate methodology would have been to examine traces of the top 5 MMORPGs in terms of active players.