Though notes in a Spaced repetition memory system are atomic in the same way as Evergreen notes (Evergreen notes should be atomic), they’re in many ways too atomized (Traditional spaced repetition memory prompts are atomized). The form discourages incremental synthesis and distillation.
The questions float in an undifferentiated mist, detached from any intrinsically meaningful context and not linked to relevant neighbors (Evergreen notes should be densely linked), and not especially meant to be accessed except within the review experience. They’re not meant to be durable, growing units; they’re meant to be disposable flotsam. All this could be fine, if they had a clear relationship with a separate system for Evergreen notes, but they don’t.