Come on now, there must be a good reason for removing that inscription ... they have to make room for a new inscription when someone adds eclectic marble stone to match those hideous walls outside to the inside of the church, or perhaps for whoever provides monastic cells with heating and insulation or perhaps gifts the Karabakhi Archbishop with a Rolex. The archbishop of Yerevan has a Bentley and a gun, the Catholicos a Patek Philippe watch - the least they could do for that guy... is give him something entry level, god forbid.
Can you recommend a book with older photos of the original you mentioned?
On a side note - went to see the newly rebuilt church at Parpi. Mismatching stone that was machine cut, with the stone ends and leftovers scattered nearby, and the original unused masonry (no attempt to re-incorporate it) lying around, and modern graves going up to wall of church itself. clearly it was never properly excavated either and broken pieces of pottery and bone littered the side.