I think they are just trying to see what the Popes involvement has been if any at all. While they do this the press will have a circus as they always do. If the Pope has nothing to hide I suspect he’ll have no problem co-operating.
The real problem here are the priests and others who never considered, and didn’t care one iota, the impact of their behavior on the Pope, the congregations and the church entire. Sin always impacts others and the greater sin it is the greater the impact and those it will touch. In this case the ripples have hit the entire church al the way to the top.
Geesh, didn’t you read the reports? The Pope knew NOTHING until years and years later. This scandal was in the 70’s!!!