There is a difference between canonization and simple veneration. Many non-canonized saints are venerated. Saints were often celebrated by popular devotion and recognized by local bishops. Since the liturgies of the Ruthenian Catholics is from the Orthodox, it includes St. Gregody Palamas, and he is venerated. There has been no canonization of him, which requires verification of miracles during life such as bilocation, levitation, and stigmata, or after death of odor of sanctity, liquifaction, incorruptability, and healings.
Created grace is not a dogma of the western church but merely a theological opinion. Both Catholic and Orthodox use the iron in the fire analogy.
Regarding the Beautific Vision, from 1336, Pope Benedict XII,
Denzinger – Enchiridion Symbolorum et Definitionum, 530:
"By this edict which will prevail forever, with apostolic authority we declare: that according to the common arrangement of God, souls of all the saints who departed from this world before the passion of our Lord Jesus Christ;
also of the holy apostles, the martyrs, the confessors, virgins, and the other faithful who died after the holy baptism of Christ had been received by them, in whom nothing was to be purged, when they departed, nor will there be when they shall depart also in the future;
or if then there was or there will be anything to be purged in these when after their death they have been purged; and the souls of children departing before the use of free will, reborn and baptized in that same baptism of Christ, when all have been baptized, immediately after their death and that aforesaid purgation in those who were in need of a purgation of this kind, even before the resumption of their bodies and the general judgment after the ascension of our Savior, our Lord Jesus Christ, into heaven, have been, are, and will be in heaven, in the kingdom of heaven and in celestial paradise with Christ, united in the company of the holy angels, and after the passion and death of our Lord Jesus Christ
have seen and see the divine essence by intuitive vision, and even face to face, with no mediating creature, serving in the capacity of an object seen, but divine essence immediately revealing itself plainly, clearly, and openly, to them, and seeing thus they enjoy the same divine essence, and also that from such vision and enjoyment their souls, which now have departed, are truly blessed and they have eternal life and rest;
and also [the souls] of those who afterwards will depart, will see that same divine essence, and will enjoy it before the general judgment;
and that such vision of the divine essence and its enjoyment makes void the acts of faith and hope in them, inasmuch as faith and hope are proper theological virtues;
and that after there has begun or will be such intuitive and face-to-face vision and enjoyment in these, the same vision and enjoyment without any interruption [intermission] or departure of the aforesaid vision and enjoyment exist continuously and will continue even up to the last judgment and from then even unto eternity."
See item 530 here:
catecheticsonline.com/SourcesofDogma6.php
