Again the armory system is just a name of a type of weapon, you're always A+ on the weapon.

the only change we can do is pierce/blunt/slash.

And then you have to graft the DoM line to it.

It's just going in a circle. You can't use 2 weapons at once, except for the flirt that's throwing weapons (which is really bad at this point).

If we want to go back to FF11, then we have to go back full tilt, Armory system is just that restrictive.