An off day could mean an off-season for a number 1 seed thinking Championship. The utter suddenness of a defeat and the end of a season, the end of a dream, is so cruel that it's beautiful. Contrast this to the NBA, which really aims to be fair. The seven game NBA Finals with home court advantage give a much better chance of producing the superior team. An off day means that you have to play better in the next game, not wait until next year.
Exceptions occur, of course.
The best team doesn't always win. Houston's victory in 1994 was particularly lucky. No expert picked them to win and when they did, those experts insisted it was lucky. The '95 Rockets, too, were very lucky. In the Finals, Orlando was on their way to beating the Rockets in Game 1, but they allowed Houston all the way back from a 20 point deficit, then Nick Anderson missed four straight free throws in overtime to let Houston win and ultimately take the series.