Actually, I'm pretty sure that doesn't mean anything, because there have been several occasions in which the winning team has not been at TARCon, and the winning team is no longer required to appear on the Morning Show post-Race.
FTR, only 1.5 winners have missed TARCon, including Alex/Chris, Kendra/Freddy, and Jen/Kisha. Alex & Chris were too drunk to attend, but would make up for it later in 2002 (the following season). And the older Hoffmann sibling went to her original season (and the following one). So, it's very rare that the winners miss TARcon, but save for the season where everyone was in Miami, every winner was present somewhere in New York, regardless of a check presentation or whether that made TARcon.
Either way, glad the little mistake was just that, and that the victims ended up winning anyway. While it was worth a good laugh, I really have been a fan of some judge of sorts being present to make sure a team doesn't hit the finish mat too soon (that would be too painful to see a team miss out on a million)