I still think you are taking it too literally. To paraphase that quote (I see no mention of Worlds, BTW), "If Belbin and Agosto post great scores that will get their season off to a fine start. If they have to struggle to the win, they will have work to do to reach top form."
In ice dance, perhaps more then any other event, results of GP events have meant little to Worlds success in the last 5 years.
2002-Bourne and Kraatz winning GP final over Anissina/Peizert, with Fusar-Poli /Margalio 4th below Drobiazko/Vanagas. Both the Italians and Lithunians had a fall in the OD but 2 clean free programs(at the GP final that year they started with an original dance then 2 different free programs). Then at the Europeans the Italians are up to a close 2nd, and the Lithunians down to 4th. At the Olympics the Italians win bronze even with a fall, the Lithunians with no mistakes finish only 5th. Anissina/Peizerat win the Olympics, Bourne/Kraatz who beat them at the GP final end up 4th(with fall in FD but remember Italians also had a fall in the free dance).
2003-Grushina/Goncharov win all 3 of their GP events, although they dont have to meet either Bourne/Kraatz or Lobacheva and Averbuhk the 2002 and eventual 2003 World gold and silver medalists; but they end up defeating Denkova/Stayvinski in their only meeting, and Navka/Kostomarov in their 2 GP series meeting during that streak. They miss the GP final with an injury but are beaten by both Denkova/Stavinski and Navka/Kostomarov at both the Europeans, where they come 4th, and the Worlds, where they come 5th. Denkova/Stavinski actually come only 4th at Skate Canada, below a team that will only finish 12th at the World Championships, but win bronze at the 2003 Worlds.
2004-Belbin/Agosto come 3rd at the GP final, and almost finish 2nd over Denkova/Stavinski, would have but for a small stumble in the free dance probably. Belbin/ Agosto even with that stumble d in their free dance edge out Grushina/Goncharov for the bronze. At the Worlds Denkova/Stavinski win silver and Belbin/Agosto are 5th, and are even tied for 7th after the compulsories. The Ukranians narrowly miss out on bronze to Germans but easily beat Americans for 4th.
2005-Denkova/Stavinski have a big win over Navka/Kostomarov at NHK Trophy, then gradualy go down from there, finishing a distant 3rd at the GP final, then missing Europeans, then finishing only 5th at the Worlds. Delobel and Schoenfeldner come dead last at the GP final of 6 teams, yet narrowly lose the bronze at Worlds to the Ukranians who were not at the GP final, and beat all of Denkova and Stavinski, the Israelis, and Dubreuil/Lauzon who all beat them at the GP final.
2006-Denkova/Stavinski are beaten by a whopping 14 points by Dubreuil/Lauzon in their only GP event appearance, miss the Europeans, but come a respectable 5th at the Olympics, then won the World title with Olympic Gold and Bronze medalists absent, but do beat Olympic silver medalists Belbin/Agosto, and GP final bronze medalists who crushed them at NHK Dubreuil/Lauzon.