Unless I'm mistaken, it seems that a lot of the new fish in DT take versatile lures instead of unique baits as their most required bait. I assume this is to get around the issue of having to carry around tons of bait, but that begs the question, why is there not a separate inventory for bait?
I wouldn't even mind if the bait went from being a tradeable item to an untradeable currency, if the server infrastructure can't handle making a 2nd kind of chocobo saddlebag. Making half the fish take the same lure is just disappointing, and doesn't fix the issue of inventory space for previous expansions' fish.