Round/Prorations page on Earnings Setup Not Applicable for Absence Management Processing

We are on a PeopleSoft 9.2 HCM, PeopleTools 8.58, Linux x86-64 on Oracle Public Cloud OS environment.

When you select rounding rules on the Specify Rounding Options section on the Round/Prorations page on Earnings definition and run the absence calculations, the earnings values don't appear to have accepted the rounding element during absence processing.

Why is this page part of the setup if it can't be used? Why doesn't the Absence Management Documentation indicate it's not applicable. Instead, it just skips explanation of this page with hopes the customer will intuitively know it's not applicable.

For reference the values do change if I setup the Pay Group Rounding/Prorations options with the same rounding elements. Unfortunately, it rounds other values I don't want updated or rounded.