Dear Griego,
There is a book on the Pochaiv Lavra in Ukrainian by Met. Ilarion Ohienko "The Lavra of Pochaiv: Fortress of Orthodoxy in Volyn."
It's a fascinating read of the history of that shrine.
The coronation of the Pochaiv Mother of God was actually done with Papal crowns. The whole celebration lasted several days, with both RC and GC priests and bishops, including papal legates who brought the crowns.
It was largely paid for by Count Myron Pototsky, an aristocrat of mixed Polish/Ukrainian background, who became Greek-Catholic soon after experiencing a miracle he attributed to the Pochaiv Mother of God.
He led a reckless life and was very ill-humoured.
Once he got mad at his footman and actually drew his pistol to shoot him where he stood!
But the gun wouldn't go off, so he tried again, and again it wouldn't go off.
With the footman on his knees begging for his life, the Count drew his pistol a third time, but it still wouldn't go off. Then he looked up and saw the Pochaiv monastery in the background.
At this he repented, felt thoroughly ashamed and promised to amend his life (essentially what I do whenever I'm taken to task here by the Administrator!

).
He became a devoted servant of the Mother of God of Pochaiv, gave very much money to the monastery including paying the vast sums for the ceremony of the coronation of the Pochaiv Icon. He actually petitioned Rome for the glorification of the icon with crowns and the Pope of the day granted his petition!
He became a Greek-Catholic, although he never learned Slavonic. He died in the odour of sanctity as a "Third Order Basilian" wearing the Basilian monastic habit and was buried at the monastery. He is mentioned (in a general way) in the Orthodox akathist to the Pochaiv Mother of God!
He fell in love with the Eastern Church and even gave money to the strident Orthodox "hold-out" against the Unia, the Manjavsky Skete.
He ALSO promoted the Canonization, by Rome itself, of St Job of Pochaiv.
(FYI, he was best friends with my direct ancestor, Count August Jablonowsky.)
I actually have in my possession an antique religious medal with the Icon of Pochaiv on one side (with the papal crowns) and the icon of St Job of Pochaiv on the other from the 18th century.
I am informed that Rome was going to canonize St Job a Catholic saint - but then the Lavra fell back to the Orthodox and the matter was closed (Fr. Sergius Keleher).
Count Pototsky also had a very Baroque/Latin item placed over an iconostasis in the Lavra and when the Orthodox had it back, they petitioned the Russian Synod for permission to take it down.
When the Synod reviewed the matter, it ordered the Pochaiv monks to leave it alone! (Good!)
Not only the Pochaiv Lavra, but very many Orthodox parishes in Western Ukraine that were once GC but then became Orthodox again continued to hold their indulgenced pilgrimages - a great many are listed by the Russian Orthodox scholar, Poselianin, in his "Bogomater."
It could have been a matter of "reinterpretation" of indulgences by the Orthodox that allowed them to continue.
For example, there are those who argue that the Orthodox devotion to Our Lady of Lourdes in France was based on a misconception as to Whose Immaculate Conception was being referred to (i.e. that of Christ not of the Mother of God).
If the Orthodox believed the indulgence was a remission of sin for good works - a kind of public absolution - then that certainly would have been more acceptable than the confusing RC view on "satisfaction for temporal punishment, having first, through auricular confession, obtained forgiveness for sins meriting eternal punishment."
Polish RC's especially had a great devotion to the Pochaiv Mother of God and one Polish king ordered that all Jews passing by Pochaiv had to get off their donkeys and walk out of respect for the Lavra until they completely passed it . . .
As for neglect of the monastery, that COULD have happened under the Basilians when it became probable that the Lavra would return to the Orthodox.
For example, when the Basilians felt this would happen in the lifetime of Pototsky, they actually dissuaded him from putting any more money into construction or renovation projects at the Lavra. Pototsky shrugged it off and continued with his work anyway. He is very esteemed by Orthodox and Orthodox authors especially.
Alex