That is extreme -- and I'm the one who complained on another thread that the OT readings were not so valuable as they might be to people who have no background in the story and its significance. An American Mother said her pastor gives wonderful sermons, explicating the relationships between the Old and New Testament readings, but she did not give the impression that the rest of the Mass was just a footnote or something to him.
The Mass is central in our parish -- I should have mentioned that the pastor or the 2 parochial vicars (one of whom preached today - our young black priest, a/k/a "Father Krunk") almost always work the Eucharist into the homily. Today he had his hands full with the Gospel, which is a tough one ("this is a hard saying - who can bear it?") so he mentioned neither the OT reading (Jeremiah and the cistern) nor the Eucharist. He did however mention the NT lesson - Paul's "cloud of witnesses" and "running the race with our eyes on Christ Jesus" in the context of the Gospel "I come not to bring peace but a sword." (yeah, that's KJV but the lectionary is awful in some spots, and that's one of them. The Greek is macaira - "a sword" and the Vulgate Latin is gladius - exactly the same.) "I come not to bring peace but division" is just clunky.