Look at the front page again
The actual story is on the front section of the sports page (S1).
Now look at the stories that are on the front page: Daycare secrets; sinking wages; aboriginal health experiments; subway fund shortage.
Per typical newspaper design, the newspaper needed a centerpiece photo or art and none of those front page stories had it (or there wasn't time to do any illustrations that would serve as such). So what do they do? They take a photo of a story that is somewhat interesting from another section and use that as the front page centerpiece.
If it was a different day where there were more breaking news day that involved fires, crime or something else (or the announcement of the drug habits of the mayor, since we're talking about Toronto) that would yield centerpiece art, then Gilles' story would likely have remained on the sports front.
I see the front page treatment as editors deciding that that was the best way to front centerpiece art when none of the A1 stories had any.
Sure, team Lane/publicists may have be influential as far as making the paper aware of the story. But the paper likely found it newsworthy because 1.) it involves a local team 2.) immigration stories, in general, are quite popular given today's climate. 3.) While we as hard-core fans percieve G/P as a second-tier Ice Dance team, the editors at The Star -- who are likely not figure skating fans -- may still deem it noteworthy to tell the story of a team that has seen national success at least (they were silver medalists this year.).
As for the fact the editorial came just days after the story -- that isn't an uncommon occurrence. Most editorial boards write editorials based on stories/events that happened recently. The editorial boards of most newspapers have to fill the editorial page daily, so it's likely they saw the story and say, hey, this is worth commenting on. Again, Team Lane might had influence in getting the ball rolling, but I believe that any influence ends there.