Exactly my thoughts.
There are a few posters on this site who consistently use the 'if you don't agree with me then you don't understand football' line as a persuasive device. Some are more subtle in their use of it than others, of course, but you can always tell what they are suggesting. It is a weak argument.
Can generally get an idea of how intelligent someone is about football with certain questions, ie if they don't get what Heskey brought to the England team, they do NOT understand football. If they quote his goals record as a reason he shouldn't have played for England, they need someone to hold their hand when crossing the road.