Commonweal has provided some quotations from the early writings of Joseph Ratzinger on the need for liturgical reform circa. 1966 (note that this is after the 1965 Missal [Note amended below; this is wrong]). I had begun composing a commentary of my own but I think I'll just leave that to others. I found his comments very interesting (for example, I hadn't known that Leo XII actually recommended saying the Rosary during Mass). In any case, his writings here do illustrate the hope of a generation - one that didn't turn out as expected. (Why the Commonweal blogger didn't take time to correct the OCR errors, I have no idea.)
Coda: as the commentator points out, the text was written before 1965 but the book was printed later.