I don’t see anything to argue with here. The Church has never taught that clerical celibacy is inherent to the sacrament of Holy Orders. It’s not a doctrine of the Church: which is one reason why we have so many married deacons in Holy Orders.
Can. 277 §1. Clerics are obliged to observe perfect and perpetual continence for the sake of the kingdom of heaven and therefore are bound to celibacy which is a special gift of God by which sacred ministers can adhere more easily to Christ with an undivided heart and are able to dedicate themselves more freely to the service of God and humanity.
http://www.vatican.va/archive/ENG1104/__PY.HTM
Priests are called to serve God and His Church with an “undivided heart”, a virtual impossibility when one has a wife and kids to consider. Exceptions have obviously been made, but priestly celibacy remains the ideal, for both spiritual and practical reasons.