For those who'd like the condensed version:
"you are confronted with the one philosophical problem that no book or tradition or teaching can ever know or solve; being you, in your world."
What the article says is that philosophy is not very useful to an individual, which, having failed to gain any relevant insights from raw philosophy myself, I agree with.
However, I would argue that the application of raw philosophy in stories, like Crime and Punishment or The Stranger or Arrival or Romeo and Juliet, is what makes philosophy useful––being able to see it applied in a relatable character's existence, not unlike our own, with the requisite cause and effect chains. Ay, there's the rub.
I have gained great insights from stories that make excellent use of philosophy–through its application. It could be argued that great works of fiction follow from new developments in raw philosophy. Both fiction and philosophy play in the space of universal truths.