I'm not sure that I agree. Baseball isn't a coin flip- the results of the previous games helps you determine the probability of winning the next game- i.e. it's safe to say we have a better shot at winning our next game than the astros given each team's previous performances over the course of the season
I don't agree either because the final score (and outcome) of a game is not the grand total of everything that said game included and which can impact what might happen in the next game. Again, injuries, use of bullpen, starting pitcher (and, by extension, the starting pitcher for the next game), all had some impact on the just completed game and will likely have some impact on the likely outcome of the next game.