#5 The games are dull
International friendlies are rarely exciting and do not compare to the drama of Premier League, La Liga, Serie A or Bundesliga, the games are mostly used as chances for coaches to experiment with players or systems ahead of the major tournaments.
Because international sides do not meet up as often as club teams it could be said that there is not as much energy in performances, at club sides players develop an understanding and are drilled into their roles much more effectively and therefore the matches are much more enjoyable from an entertainment perspective.
It is not surprising that someone would enjoy the drama of a league season to a non-competitive friendly with unlimited substitutions, if enjoyment is ever going to be put into the International fixtures then the games will have to count for something meaningful.