Listen, I'm not a canon lawyer and don't care to simulate one. You posted paragraph 73 of the document which is found at the end under the last, excepting short conclusion and appedices, and short (1 page long) "Title V" concerning "Worst Crimes". It contains paragraphs 71 - 74. Go on to paragraph 74. It states that "even the regular superior can proceed, according to the holy canons and their proper constitutions, either in an administrative or judicial manner" after stating that "unless there takes place at the same time the crime of solicitation".
What gives? The document is about solicitation. It directs superiors and ordinaries to the proper canons of the Church concerning worst crimes. No changes UNLESS these are involved with the crime of solicitation. This document only deals with worst crimes to the point they are mixed in with solicitation - WHICH IS THE SUBJECT OF THE DOCUMENT. The title of the document in question?
It takes too long to load to pull it into this thread, 281 kb (screen shot of that portion of document).
I would tend to accept Totus' explanation as to why it is there and what it means unless a better interpretation comes along.