"A Word of Caution Regarding Changes to Equipment Binding"

[Bufkus]

Exactly the changes I expected since it was a bug that Item Level 70+ wouldn't bind until the Coil.

Now we can make Rank IV Materia.

Not really. What they're saying is that the equipment will become bound once you use them once. They didn't specify that the items will actually be able to be spiritbonded.