= Opening === 
 May we please consider the matter bit by bit?  This discussion section has got enormously long.  Let's start with the definition of "Catholic Church hierarchy", before considering whether other matters need to be dealt with in the lead, rather than in the body of the article.  I would suggest opening the article as follows: 

 :The Catholic Church hierarchy consists of those members of the Catholic Church who are in holy orders, as the Council of Trent definitively stated: "If any one saith, that, in the Catholic Church there is not a hierarchy by divine ordination instituted, consisting of bishops, priests, and ministers; let him be anathema."Council of Trent, session XXIII, canon VI on the sacrament of Order Accordingly, the Catechism of the Catholic Church distinguishes the Church's membership as belonging exclusively either to the hierarchy or to the laity.Catechism of the Catholic Church, 873 
 :However, the term "hierarchy" is also commonly, even if unofficially, used to refer to the bishops alone, excluding the priests (presbyters) and deacons."Hierarchy" in John Hardon, Modern Catholic Dictionary 

 If we can agree on that or some modification of it, we can then insert it into the article and afterwards go on to discuss the many other questions you are raising, such as your claim that the magisterium means "defining dogma".  Defining dogma is, I would say, a "supreme magisterium" (cf. CCC 891) that the college of bishops (including its head) exercise from time to time; but they exercise a vastly wider magisterium every day.  Let us leave until later that and all the other questions you are raising.     

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