The document throughout insists that this is the work of the Holy Ghost, Who is the Principium Unitatis.
May He, the Lord and Lifegiver, Who has inspired this great good work, now bring it to fruition, for the good of souls, all to the greater glory of God.
Of your charity, pause and give thanks to the Lord, with Te Deum and prayers, or at the least the Collect for the Anglican Use:
O HOLY Ghost the Lord, who on Pentecost gavest the Church the gift of tongues that Christ might be known, loved and served by peoples of divers nations and customs: watch over the Anglican heritage within thy Church, we pray thee, that, led by thy guidance and strengthened by thy grace, that Use may find such favor in thy sight that its people may increase both in holiness and number, and so show forth thy glory; who livest and reignest with the Father and the Son, one God world without end. Amen.
(En passant, I note that Catholics not of Anglican origin are not usually to be members of the Ordinariate, unless by reason of a family connexion - but of course there would be nothing to stop any Catholic going to Mass in a church of the Ordinariate: for any Catholic can attend Mass in any Catholic rite...)
While the Constitution has only now been made public, it is dated last Wednesday, the 4th of November, the memorial of St Charles Borromeo.