More options would be nice but given how the equipment system works in this game it would just result in more items to keep track of. FFXI mix and matching 1 handed weapons worked because dual wield let you equip any 1 handed weapon in offhand. This game would need specific offhand versions of each weapon. MNK weapons were always considered 2 handed because they automatically came in pairs. RDM weapon would be considered 2 handed as well as both parts of the weapon are actually the magic focus when casting. BRD quiver and MCH satchel could be an offhand but pretty much serve no purpose outside of glamour.

If anything at the moment I feel like we need more tanks that actually use a shield