Case selection. A plaintiff attorney evaluating whether to take a case can look at the staffing data first. A building with low hours per resident day, high agency use, weak weekend coverage or high turnover is a more attractive case before anyone has read a chart.
The discrepancy argument, which is the most damaging use and the one operators control. If your marketing material describes attentive individualized care, or your policies specify a staffing pattern, and the published data shows something else, the gap is the case. It requires no expert to explain and no chart to prove.
The weekend pattern. Weekend staffing is separately visible, and a building staffed materially thinner on weekends invites the argument that the level of care depended on the day of the week rather than on the resident needs.
Turnover. High turnover supports the argument that the people caring for a resident did not know that resident, which is the intuitive core of most senior care negligence claims and does not require any technical proof.
Agency proportion. Heavy agency use supports both a supervision theory and a vicarious liability question about who is responsible for the agency nurse, which is a separate coverage problem in its own right.
Corroboration. Where a family says the call light went unanswered, the staffing data either corroborates them or it does not, and the jury will be told which.