The argument wasn't really about the foul, it was that the rail got involved; when Raulito picked up the 9, Oscar was rooting around in his bag w/his back turned. His guy there jumped up right away and called the foul - esto no es bueno in a gambling match! Of course all unnecessary as it was going to be clear what happened, he's still carrying the 9 ball around; but I guess you need to make a point. (6:34:30)
BTW, best watched after the fact w/liberal use of the YouTube skip-ahead-10-sec key (L) Also, you can turn on subtitles w/automatic xlation to English. Pretty cool. The announcer from Columbia was a lot of fun.