What makes Nami and Usopp the weakest Straw Hats is they're gadget fighters. They're fodders without their gadgets. Their strong suit in combat is their gadget-planning to beat much stronger enemies. If their EOS selves are "veteran-level," it'd only be to the degree that their gadget-planning can take out certain veteran-levels (due to carelessness). They will still be fodder to the likes of Arlong without them.
And Nami getting an Ulti in worse condition than post-surgery Doflamingo was never the problem. You can still make these Tobi Roppo live up to their hype and make Nami and Usopp win a difficult, just don't make them 1-on-1.
And Nami getting an Ulti in worse condition than post-surgery Doflamingo was never the problem. You can still make these Tobi Roppo live up to their hype and make Nami and Usopp win a difficult, just don't make them 1-on-1.