1) Crimen Sollicitationis is about the crime of solicitation within the confessional, not about the abuse of minors per se;
Thats not necessarily true. Title Five, Crimen Passimum, Sections 71-74 of the INSTRUCTION, On the Manner of Proceeding in Causes involving the Crime of Solicitation deals with acts of homosexuality, bestiality and sexual acts perpetrated or attempted in any way with pre-adolescent children of either sex. These acts are outside of the confessional, however the rules of Crimen Sollicitationis still apply including;
13. The oath to maintain confidentiality must always be taken in these causes, also by the accusers or complainants and the witnesses. These persons, however, are subject to no censure, unless they were expressly warned of this in the proceedings of accusation, deposition or questioning.
I will admit the correction on point one but the rest stands. As you have stated, no. 13 explicitly states accusers, complainants and witnesses are not subject to censure. The secrecy is to guard the sensitive nature of the investigation. There is nothing nefarious here. The victims have always been free to go to the police to report the crime. To continually misrepresent this as some sort of conspiracy to cover-up these crimes is a most foul and gave form of false witness.