Not to mention that a Priest is Excommunicate reserved to the Pope for the crime of solicitation. That being the case, even if they "honestly" mistook the document, they must have also "overlooked" the penalty of excommunication for the priest involved.
When dealing with a highly technical, internal document of the Church (in Latin) there would be points of canon law and moral theology which would be assumed as understood by the parties intended to read it and those which required clarification. One would not expect such a document to emphasize that it is always wrong for a priest to solicit sex during sacramental Confession because that would already be understood.
Likewise, we wouldn't expect to find staff memos at CBS emphasizing that it is always wrong for a journalist or editor to lie deliberatelty in a news story. That CBS does not regularly warn its staff NOT to lie or not to slant things to suit the peculiar agenda of the secret society they happen to be a member of would not necessarily be evidence of a lack of enthusiasm for accuracy in reporting. Silence on a point in any document does not indicate that the writer holds an ethically wrong opinion on the matter.