The erudite journalist, Sandro Magister carries an excellent review of a book on Blessed Paul VI, and the late pope's real opinions on the so-called liturgical "reforms" following the Second Vatican Council. The pope did not like the deceptive and false reforms. Magister gives a number of examples of Paul questioning the changes, in a manner as if he had no actual power. Very interesting.
Regarding the distribution of the Sacred Species on the hand, Pope Paul considered such an action as that on an "infidel", a non-believer.
On May 18, 1975, after noting more than once that during the distribution of communion, in the basilica or in Saint Peter’s Square, there were some who passed the consecrated host from hand to hand, Paul VI commented:
“The Eucharistic bread cannot be treated with such liberty! The faithful, in these cases, are behaving like.. infidels!”
We are confronted with the mystery as to how and why a Supreme Pontiff, opposing such abuse and "reforms", was stymied, obstructed and fluffed off by men who were literally hell-bent on corrupting the Faith. Scholarly research, such as this new book, will eventually reveal why the pope was paralyzed. I believe that it is too simplistic to say that Paul could have acted against them, but chose not to. We do not know all the machinations going on behind those Vatican Walls. We do know, as the Pope himself admitted publicly, the "smoke of Satan" had entered the Church.
One thing, we can do: we can heed the words of the late Holy Father and not act like an infidel, but approach Holy Communion reverently and receive - always - on the tongue.