Square Enix: "Due to the demand of penta melded accessories for tanks and their high cost we are revamping the way materia melding works and tanks damage calculation stats"

3.2: "Now everyone who wants to raid has to meld million dollar a piece materia to their previously unmeldable lore and alex armor... oh and the tank damage stat revamp inflated the value of secondaries of tanks even further increasing the demand of penta melds which will now be done with newer more expensive materia.

#rekt

Seems logical...