The sociologists who put that together are highlighting what Trads have noticed for a long time. The secularists will cheer because it sure looks like the Church is going away and not slowly either. The Trads will grow. Those who love God and are blessed with wisdom will find their way to the Traditional Catholic Church.
The name "Mary" has fallen out of the top 100 names for girls and the novus ordo youngsters are not named Mary is a little jarring.
The decay in the Novus Ordo is obvious.