See, I think you're making an assumption there, too. Assuming your statistical data are correct, what they show is that it's highly unlikely that the Suns will lose 4 straight in San Antonio. It doesn't say where within those 4 games the Suns are likely to win; it just says that if the Suns play 4 games in San Antonio, they're likely to win 1.
The rub, in the context of this thread, is that the Suns might not get a chance to play the hypothetical 4 games in San Antonio. And there's nothing, statistically (from what I can tell), to say that they're unlikely to lose 3 straight in San Antonio. Losing 3 straight and then winning the 4th is as consistent with the statistical trend as losing 2 straight, winning 1, and then losing 1 more.