B) Being unable to pre-determine an outcome does not make an event random.
Well, for some definitions of "random", those for which the definition would encompass nearly every event in human life that contains variation. My job performance is random, my driving route to work is random, my kids' willingness to eat their vegetables is random, my length of my SoSH posts is random. We can choose a colloquial definition of "random" that deprives us of any ability to analyze or discuss competing merits or angles on something.
The essence of the definitional conflict here is some people seem to think that the
only fair outcome of a series is that the team that is stronger through the regular season (via record, pythag, WAR or similar) wins a postseason series, and
any other result must somehow be deemed invalid - and given how heavily baseball leans into probabilistic outcomes, structurally, the easiest way to devalue such an outcome is to label it "random". "The better team didn't win this game / series" is a refrain from sore losers on through the decades, as sure to be heard from sports fans forevermore as are complaints about the officiating.
This view, of course, ignores meaningful factors like injury tendencies throughout a season, opponent adjustments and tactics, players wearing down (or not) through the grind, coaching success and player improvements, etc. But it also misunderstands the fundamental nature of probability: it adheres to the (childlike) view that probabilistic events must have one certain underlying truth, and the layer of probability on top of it just is our own uncertainty in being able to
measure that truth. But those of us who have sat through, for example, a class on quantum mechanics or maybe a stats class or maybe just played a lot of poker, eventually come to the emotional understanding that in life, many events themselves - superiority in a game, patterns of crime, airplane flight delays, disease and infection - all are
fundamentally uncertain, and can be expressed only as a probability distribution. In real life, one roll of that probability distribution determines whether we make or miss the train, but at a higher level there wasn't some predetermined outcome that we just had to pull back the curtain to reveal; instead, the dice might be weighted towards a direction, but multiple outcomes are still very possible. There is no underlying truth or single outcome that we are just trying to "estimate better".
I used to mock
most sports commentary, but I've come to appreciate that it's the ways in which the players are not robots, that teams and managers can slant the probabilities towards themselves by being savvy, is the essence of what makes it entertaining. There is no more joy in watching random number generators than there is in watching the paint dry. Instead it's the human striving, the athletic ability, and the strategies that can pay off or not - that's the drama. Compressing a team's fate after 162 games into a 4-out-of-7 series is just compressing the drama, distilling it, but it's drawn from the same sources that drama in any 1 game out of 162 might be coming from. But in my opinion, to dismiss that as all being the whims of fate is to miss the forest of sports - the pageantry - for the trees of the numbers.