Fidyah substitutes for fasting where inability is regarded as permanent. If capability unexpectedly returns, the standard Hanafi elaboration requires make-up of the missed fasts; the earlier feeding does not remain a permanent replacement for fasts now performable.
This return-of-ability rule is explanatory Hanafi jurisprudence, not an additional verbatim line from Quduri’s quoted sentence. Actual capacity should be assessed case by case.