I find that writing spaced-repetition prompts in the way the article describes to have too small of a return on investment: Reviewing them is quick, but it takes a lot of effort to craft good ones from a text. Good authors take care with their prose and use nuance to get their point across, which is often lost in the translation to a few bullet points. This subtlety is often the meat of the text, and the high-level p…
Though this engagement itself aids memorization...
I'm not a fan of spaced repetition, instead preferring to understand material and find connections (associations) integrating it within my existing knowledge. This makes it usable, not just recallable. It's holographic, in that I can also recover it from other things I know, like the shape of the missing jigsaw piece, or a theorem or proof.
However, I've come to realize that the very act of engagement to understand is, in itself, aiding memorization.