I participate and enjoy ultras as well. And I have a list of peeves greater than what you mentioned!
I agree it's boring to hear those excuses. But, there are reasons why analogies to other sports breaks down:
* Players in team sports like basketball/baseball have ~80-170+ games/yr, whereas a top runner in ultras has like 1-4 or so goal races. They're hyperfocused on everything going right on that one day, and the (boring) details of the interview, if things go wrong, will go back to things in the last few weeks/months in training. But in team sports, you wouldn't go back to talking about what happened 1, 2, 3 weeks ago because it's over with and you were already interviewed about it.
* Ultras are really long, and boring things happen that affect the race, like puking or twisting an ankle or what-not. Things like that are less likely to happen in shorter (duration) sports; when they do, a player will often rest up to consider the next game, and is literally replaceable by a teammate.
* Ultras are not televised or spectated for long stretches, so they're literally recapping issues that happened outside of view.
* Many ultras (100M/mountain races especially) are not overly competitive between individual talent/skill at the top. For a truly competitive race in which one person was clearly beat, 2 (or more) guys have to have awesome days where everything goes right and one guy's just a bit faster. Instead, the top ones still usually have a bad patch or two but the one who manages the best wins. So the story ends up being about that sort of management moreso than some sort of magic perfect pace and a sprint finish.
A runner hopes for a perfect training block and perfect day, and that rarely happens, so they're going to recap the perceived things that didn't go well. Many of those things are also true for the winner, but there's no reason for them to dwell on it.
On the flipside, the interesting stories are due to the terrain, wildlife, weather, and other surprises, unique to other sports. But even when better experienced directly!