"This ignores the apparent embrace of the UOC-KP though... folks who've said they may commune with Catholics..."
I hadn't heard this, but it doesn't surprise me. In Lebanon the Antiochians, the Melkites and the Maronites are doing it too.
Did you check out the link to the Holy Trinity Mission Site?
I find it interesting that the Slavs generally have never heard of the allegations popular here in the west that the Tsar ruled the church with an iron fist...