The deliberate construction of a form, at that time, by those people (remember how much you get agitated about Bucer?) and the use of such a form, so constructed, was taken as positive intent not to do what the Church does: consecrate a sacrificing priesthood. It is likely that the logic would not have been applicable, had the Pontificale been used, or even if one of the older, pre-existing forms that also have that “defect” been used, such as the Ordinal of St. Hippolytus, or the formulary of St.Serapion. Clark addresses this idea, and makes the argument I am setting forth here. If one looks at the older rites and looks at them in their historical context, one has no doubt that they did not intend to specifically exclude the sacrificial priesthood. The context of the times provides a contextual determinatio ex adiunctus. The earlier rites have a context which permits a determination of a valid intent, in their use. The Edwardine Ordinal, does not (think Cranmer, Melancthon, Bucer). To use such a construct in that context provides a contextual determination of the intent of the sacramental action; specifically not to do what the Church does.
Intent, in the sacramental action, is simple to attribute, impossible to determine. So, as long as form, matter, etc, are valid, reflect what the Church does, the Church assumes the intent is the same. Otherwise, one would never know if one had received a validly confected Eucharist. But if the form is not valid, and its use suggests a contextual look inside the intent, then the intent can be determined to be invalid.
Yes, Saepius Officio used that line of defense. It doesn’t meet the objection fully.
GKC