So Rugby Union shouldn't bother having a world tournament then because there are only 5 teams in it?
Since 1987 the Rugby world cup has been won by 4 teams.
Since 1986 the Football world cup has been won by 6 teams.
Hardly a gulf between the codes.
Christ If I never had to watch Rugby again it would be no loss but I don't have an issue with other people watching it.
You never hear of cricket or that god awful Formula 1 being compared to football so whats the problem?