The five-job diagnostic cannot lose on a failed case.
A dead file is always missing at least one of: received in a valid form, attached to a legal path, owned, tracked, or closable. A live file has them. So "which job is missing?" files the complaint you already had.
The page's own slot-function fallacy is this move: a named list offered as proof the diagnosis ran. What would make the list more than a filing system is a failure where all five jobs actually ran, or a success that skipped one. Until then the partition is a caption for "it didn't work."