The 2001 document, written by Ratzinger, reiterates the need for secrecy for all involved. The point of his letter was to reaffirm the tenets of CS to all bishops.
That letter was one reason why victims charged Ratzinger with obstruction of justice and why he had to retreat under the protection of diplomatic immunity to avoid prosecution.
I’m sure you know that Crimen Sollicitations refered ONLY to when a priest used the confessional to solicit sexual favors. So, it has no bearing on this case, which had to do with abuse at a school. So your assertion is wrong on that point.
Second, Canon Law, which trumps anything else, requires any such solicitation to be reported IMMEDIATELY. So, once again, your claim doesn’t apply, because it ain’t true.