Fr Fr Pagliariani sums up the problem with the Novus Ordo in two paragraphs, or at least the essential problem with it:
On one side is the Mass of All Times. It is the standard of a Church that defies the world and is certain of victory, for its battle is nothing less that the continuation of the battle that Our Blessed Lord waged to destroy sin and to destroy the kingdom of Satan. It is by the Mass and through the Mass that Our Lord enlists Catholic souls into His ranks, by sharing with them both His Cross and His victory. From all this follows a fundamentally militant conception of Christian life that is characterised by two elements: a spirit of sacrifice and an unwavering supernatural hope.
On the other side stands the Mass of Paul VI. It is an authentic expression of a Church that wants to live in harmony with the world and that lends an ear to the world’s demands. It represents a Church that, in the final analysis, no longer needs to fight against the world because it no longer has anything to reproach the world. Here is a Church that no longer has anything to teach the world because it listens to the powers of the world. It is a Church that no longer needs the Sacrifice of Our Blessed Lord because, having lost the notion of sin, it no longer has anything for which to atone. Here is a Church that no longer has the mission of restoring the universal kingship of Our Lord Jesus Christ, because it wants to make its contribution to the creation on this earth of a better world that is freer, more egalitarian and more eco-responsible – and all this with purely human means. This humanist mission that the men of the Church have given themselves must necessarily be matched by a liturgy that is equally humanist and emptied of any notion of sacredness.