I was invited to speak at prayer group meeting a while ago, it was lay lead, it was pious, lots of good people. What struck me was most of the prayer was addressed to Jesus, nothing wrong with that but apart from singing a song which started "Abba, Father", which seemed to have a rather dubious Trinitarian theology, there was hardly any reference to the Father.
It was the Father Jesus came to reveal, he is the perfect icon of the Father. In the liturgy prayer is, for the most part addressed to the Father, through the Son, in the Holy Spirit, the model is the doxology of the Eucharistic Prayer, "Per ipsum, et cum ipso, et in ipso, est tibi Deo Patri omnipotenti, in unitate Spiritus Sancti, omnis honor et gloria per omnia saecula saeculorum." Though the Eucharist is a thanksgiving for Jesus Christ, it is addressed to the Father, Jesus is not the focus of the Mass, or our devotions, or the Church: the Father is. Always we go to the Father, through with and in the Son, in the unity of the Holy Spirit. If our worship merely brings us to the Son without going further into the mystery of the Father then presumably it is foreshortened and towards heresy.
Obviously, it is true, "to see me [Jesus], is to see the Father", hence the Church eventually came to address, occassionally, even liturgical prayer to the Son. It encouraged devotions like prayer to icons, at first to the ambiguous image of the Incarnate Word, the Pantocrator, then later to the crucified Christ, and ultimately to the Sacred Heart. I say "ambiguous image of the Incarnate Word, the Pantocrator", because as Christ is the perfect icon of the Father those great mosaic images in the apses of ancient basillicas can be read as images of the unseen Father.
"The priest and people most certainly do not pray one to the other, but to the one Lord." is incorrect, if the Lord here, and the context seems to suggest it is, is Christ. Though one can share with the Pope a discomfort about constant liturgical change, gathering in a circle around a crucifix, is obviously a little better than gathering in circle staring at one another but it hardly suggests a truly Trinitarian act of worship.