Setting aside the fact that the SCOTUS ruling was totally out of step with the law to begin with...

This is not really debt forgiveness. This is ostensibly just correcting clerical errors that were being consistently made by the last several administrations in the DOE.

They've been mishandling these loans egregiously for a long time, demanding debtors pay more than they should ever have needed to and failing to properly consider appeals and reconcile issues.

I would bet this project to identify and correct issues has been going for a long time in parallel to the other debt forgiveness plans. No way it was a small amount of work or a spur-of-the-moment decision.