Is popularity determined by the size of a sport's fanbase (most watched) or by the number of people who participate in a sport? For either of those criteria, we might also need to make a distinction between the casual fan or participant and the regular fan or participant. The article referenced by the OP asks how popularity might be determined at the onset but then fails to state the criteria used for their list. What is really needed, perhaps, is 2 lists -- most watched and most played.
With that said, I am shocked that badminton is not listed in the top 10. Some sources put the worldwide participation of badminton at #2 (right behind soccer/futbol). I suspect that the fan base might also be in the top 10.
http://sports.espn.go.com/oly/summer04/badminton/news/story?id=1845228
http://www.topendsports.com/world/lists/popular-sport/
http://mostpopularsports.net/in-the-world-6to10
http://biggestglobalsports.com/
Good lists. But if you look at what I posted more carefully, most of what you listed has a link on it. But good way to look at popularity though. What is watched and what is played. Still, what's popular is popular, in whatever shape it is followed.