The "debilitated" wording is a holdover from the v1.1 Nausea Status Track. (Queasy/Sick/Nauseated/Debilitated) "Nauseated" had the PC spending one action vomiting, and "Debilitated" increased that to both actions.
1.2 pared the Status Tracks down to a smaller set of two-tiered conditions.
So...