This is the beginning of the Mass, the Entrance Procession with its chant. Prayer has begun and there should be no time out or intermission at any point following the beginning of prayer at Mass and its trajectory:
The one area where this is truly a scourge is in the Introductory Rite of the Mass.
For example, if a priest simply follows the Introductory Rite of the Mass and does absolutely no improvising, there really isn't much of a problem. But this is very rare today!
For some odd reason, many priests seem to think that the Mass actually begins with the Penitential Act. It doesn't of course. It begins with the Entrance Chant, whatever that chant or song might be. The trajectory of Prayer continues with the "Sign of the Cross" which does not begin the Mass, the Entrance Chant begins the Mass, since this needs repeating. Then the trajectory continues with the formal greeting of the Mass, "The Lord be with you" or one of the other variations of this with the assembly's response.
For some reason, some (usually the many) priests think that the litrugical greeting is too sterile and unfriendly, so immediately they launch into a secular greeting with secular bantering. Usually one will here, "Good morning, church!" How are ya? I hope you are having a great day! Isn't it beautiful outside, I know you are sorry to be inside now, aren't ya? Today's readings tell us blah, blah, blah, blah.
This bantering and blah, blah can go on for minutes depending on the priest and how full of himself he is (narcissistic). Then of course even the priest doing this recognizes he needs to bring things back to a sacred, prayerful level rather than a secular, unprayerful level.
So the priest will usually say, "Now let us begin by calling to mind our sins..." or some other such improvisation.
THE PROBLEM: The problem is the Mass does not begin with the Penitential Act or its improvised introduction. It began with the Entrance Chant! What the priest who improvises and blah, blah, blahs on has done is to disrupt the trajectory of prayer and its continuity for a secular time out and for an additional homily or two completely disorganizing the Introductory Rite and its purpose, to keep us in a prayerful trajectory from the Entrance Chant to the Collect as a prelude to listening to the Word of God! It renders the Entrance Chant, Sign of the Cross and Liturgical Greeting useless and superfluous.
This problem can never occur in the Extraordinary Form's Introductory Rite with its lengthy Prayers at the Foot of the Altar and no chance of introductory bantering and blah, blah. The EF Mass is serious about prayer and its trajectory from the Introit through the Collect!
So this is my modest proposal for changing the order of the Introductory Rite, which is really no change at all, except for a minor rubrical change and where the Liturgical Greeting should take place:
The Mass begins with the Introit, either spoken or chanted.
(after the priest approaches the altar and reverences it, he goes to his chair to continue the Mass)
The Sign of the Cross
(then immediately the priest uses these words and no other words):
Brethren (brothers and sisters), let us acknowlege our sins, and so prepare ourselves to celebrate the sacred mysteries.
(a brief pause for silence follows. Then one of the options for the Penitential Act is used):
(The Greeting follows and only this choice):
The Lord be with you...And with your spirit.
As you can see, this would eliminate the silly time out or intermission in the trajectory of prayer that so many, the many, priests take with their own improvisation of a secular greeting of some silly type and the blah, blah that ensues.