The point is not to saddle the denomination with a huge debt, which it would do. The point is to see HOW the denomination tries to wiggle out of the debt. Will they claim NOT to be in a true ownership status?
I see no problem with it. After all, they’re getting free buildings if they live up to their claim of being the owners of the property.
In most parish and diocesan by laws there is a canon that states that the parish has to have diocesan approval for any purchase, sale or borrowing and financing of parish properites. An orthodox parish has as much chance of getting that approval as a snow ball in ECUSA.