although I can't for the life of me see that cutting up MRA4's to buy something else instead is a brilliant idea frankly
I do not think they were cut up for that reason - they were cut up to prevent anyone trying to revive them in the future and to ensure that any future MPA (should one ever be needed) will be based on another platform, with as little customisation as possible. As long as there was acarcass lying around, someone would try and resurrect it, especially given the nose dome issue referred to elsewhere. Burying was clearly not enough last time around - this time its the shredder.
Just IMO of course.