Uncle Koh, thanks for this thread. I still remember the good old days in the forum when people would post about their real life experiences and base the theme of their threads or posts on those. Of course, some of those were sex related, but never mind. :p
A few comments in point form:
1. I'm a big football fan, but over the years, have gradually lost interest in local football.
2. Don't see any problem in football fans cheering their team coming home at the airport.
3. Customs and security could have done better, but perhaps they had their own reasons or judgement too.
4. Presumptious and perhaps even unfair to talk about contraband.
5. "Uniquely Singapore" is not this. It is something more sad and unjust. This incident you saw, I would consider a happy occasion and leave it at that.