The point of attending the Mass is NOT to get a dose of Scripture, or to learn about Scripture. The point is to unite oneself to the ineffable sacrifice of Our Lord being mystically re-presented.
If it were otherwise, we’d just be better off going to a Protestant church where we might hear oh, 50% of the New Testament.
Besides, I’ve always been very skeptical of these claims, since I think many important Scriptural passages (especially those with politically incorrect sentiments such as certain of St. Paul’s admonitions) in the Old Rite are not heard in the new rite cycle.
But in short, adding more Scripture into the liturgy was not necessarily an improvement or something that renders the New Rite superior to the Old. Based on the increasing ignorance of the truths of the Faith of the Catholic population, more Scripture during Mass has not produced positive results.