Weapons have never been included in end game dungeons outside of the first set. In HW the only lvl 60 dungeon weapons were the Baldur weapons from Fractal and Neverreap, and this is repeated in SB. It's rather easy to get to the 330 weapons though, and there is 0 rng to it. Even if they did add i325 weapons they'd be useless as most would be able to get the 330 creation weapons before they even see the drop for the proposed 325 ones.