Gerard,
For things below the solemn level we have the consistent teaching of the popes and the Magisterium, and we have TRADITION. Sacred Tradition is the sure guide to what is right and proper. Tradition which developed slowly and organically within the Church.
Yes and traditions that are old, that were abandoned can be reinstituted.
St. Pius V's reform was not a 'slow organic development" but a sudden, jarring for some regularization.
It was a restoration of the liturgy by a committee which stripped away numerous accretions which may not have been appropriate according to the Pope or the committee involved, but that doesn't mean the lay faithful would have been particularly happy about it or the clergy who's tradition it had been handed down to them.
Theological debates within the Church have been allowed yes, when theological opinion deliberately asserts itself in opposition to the Church's authority, the Church settles the matter.
And as I pointed out, sometimes it takes centuries for the Church to do this.
Because you find particular instances where the Church has returned or allowed a former practice, does not mean that the Church is a feckless entity which will do one thing today and another tomorrow in an inconsistent and inconstant manner.
Wait a minute. If you look at history we have one part of the Church burning a saint as a witch. The fact is, communications were so slow, the Church was far more decentralized and the principle of subsidiarity was in effect to a far greater degree than it was in the last few centuries.
The Catholic Church is also not known for being neglectful or indiscreet, unlike its antithesis, the conciliar entity.
No. Again, the "Catholic Church" has has some real scoundrels as its "Churchmen" who have done things equal to or worse than the current hierarchy and many times it is decades upon decades before the issue is resolved. It just doesn't seem that way when we are a few centuries beyond it and all of the resolutions of bad situations are in the next paragraph.
What you describe is the conciliar entity which operates by means of secular social trends and expedience. It is non-organic, and non-linear. A creation built upon shifting sands.
Be more specific, if you are claiming that Popes and bishops prior to Vatican II did not pre-occupy themselves with secular issues and politics and even corrupt the faith by using it to manipulate the faithful to push their own agendas foreword, that is also wrong.
That is not Christ's Church which is founded upon Him who is all Truth and does not change and whose progress is based upon and in submission to that immutable Truth.
It's Christ's Church alright, but He gives the bad Churchmen far more leeway than you seem to want to admit.
As to the Novus Ordo, anything which was acceptable to the Church at another time was acceptable in another context and circuмstance.
Who is the authority that declares it acceptable? And…..when that authority is wrong, and the fruits are bad, the same authority makes further adjustments to compensate, trash the idea or it eventually catches on.
Introducing the spirit of heretics and false religions has never been acceptable to the the Church, and neither has introducing any rite or custom whose purpose was to displace the Catholic Mass or alter the theology which surrounds it, thus changing the faith of the believers.
No. That's doesn't hold either. The Council of Jerusalem pretty much set the stage that the Church was going to adapt itself and not force the Jєωιѕн traditions on the Gentiles. It would instead Christianize the pagan traditions.
There are many types of theology in the Church. The Latin Church was once dominated by Platonism through Augustine. The Franciscans were overtly anti-intellectual for a good bit of time and the Franciscans and the Augustinians were up in arms over the modernity, paganism and liberalism of St. Thomas Aquinas.
So, the Church has changed theology over the centuries and not all of the Church, the East has never had St. Thomas.
St. Thomas doesn't answer everything so, philosophy and theology continue to develop organically. We are just in a period where the Church is going to have to settle matters in the not too distant future if they don't settle themselves.