A strong and well honed intellect draws good conclusions only when there is a solid foundation. In the case of this work, and really any other work that advocates ordaining woman and, to a lesser extent lay participation in the governance of the Church and married clergy in the Roman rite, the ground work of possible future schisms is laid. And over what? Interestingly enough, it is often over temporal power, the same thing that the advocates of women ordination and lay governance often claim they are trying to overcome.
In considering "change" in the Catholic Church, a few core immutable truths must be acknowledged in order to come to an appropriate decision.
1) The Catholic Church is a Theocracy, with Jesus Christ as the head and the pope as His representative on earth. She is not a democracy, a republic, a dictatorship, a communist nor a socialist organization.
2) As a Theocracy, with the Jesus Christ, who is perfect truth, as its head, it is to be noted that all truths communicated to humanity either by word or action are perfect in all respects and are, therefore, not subject to error.
Using some of this foundational information, once can conclude that the ordination of women to the ministerial priesthood is a theological impossibility. Meaning, even if a valid bishop lays hands on a woman and says the proper words and has the intent to ordain her a priest, it will not happen. Why? It is simple. All sacraments require form, intent and matter to be administered. For example, in baptism, there is the form (I baptise you in the name of the Father, the Son and the Holy Spirit), the intent (to baptise someone) and the matter (the water and the person being baptised). In a priestly ordination, the form is the words of ordination, then there is the intent on the bishops part to ordain that person a priest and then there is the proper matter in the validly ordained bishop and a male participant.
Why must a priest be male? This goes back to foundational point number 2. Everything Jesus communicates to humanity via word and example is perfect simply because He is God. Therefore, if Jesus only ordains men into the ministerial priesthood, then it is communicated through Jesus's words and example that only men can be ordained as priests. A reading of Ephesians 5:21-33, in conjunction with the foundational understanding that an ordained priest is an "altar Christus", reveals a far deaper meaning to the all male priesthood in light of salvation history.
As to the celibate priesthood, I suspect many here and in the US in general are ignorant of the fact that there are already married priests in the Catholic Church. Most of the eastern rite churches in union with Rome, such as the Melkites, permit a married clergy, specifically marriage before ordination. There are about 22-23 Churches in union with Rome. The largest church in union with Rome is the Latin Rite Church. It is in the Latin Church that there is a longstanding tradition that the ministerial priest be celibate all the better to more perfectly immitate Christ in form and function per the instruction of St. Paul (i.e., it is better to be an enuch for the kingdom of God). That said, as it is a dicipline, the Chuch has granted exceptions in the Latin Church for married Anglican clergy who convert to Catholicism and are ordained priests. Currently there are a little over 100 married priests in the Latin Church.
As to lay governance, one must refer to point number 1. The Church is a Theocracy and should not be confused with other political bodies. Keep that in mind and one can more readily see the limitations on lay governance in the Catholic Church.
God bless