Just for a brief rejoinder: that brief snip is out of context - The Merit Of A Mass By Father Chad Ripperger, F.S. S. P. Among the traditional faithful there appears to be a kind of intuitive sense that the old rite of Mass is more efficacious than the new rite. Many believe that they derive more spiritual gain from the old rite of Mass than from the new." https://unavocecanada.org/wp-content/uploads/2017/05/The-Merit-Of-A-Mass.pdf And: "when we turn to the Mass as a sacrifice of impetration and expiation, the case is different. While we must always regard its intrinsic value as infinite, since it is the sacrifice of the God-Man Himself, its extrinsic value must necessarily be finite in consequence of the limitations of man. The scope of the so-called “fruits of the Mass” is limited.3"
And if the Church can't give inferior rites, how can She give evil rites? The resolution is likely (as even sedes speculate about Pius XII) that something likely happened to Paul VI in such a way that the promulgation of the Mass was not entirely freely from him. Thus, the TLM is superior, but the NOM is still a valid Mass that gives less grace.
Fare well.