What is your suggestion?: Bring Nex's defensive stats, or more specifically melee defence stats, closer to what they are in OSRS. Currently they are 560, 580 and 540 for stab, slash and crush respectively (according to the NPC look-up feature ingame), whereas in OSRS they are only 40, 140 and 60.
Is this in OSRS?: Yes
Has this suggestion been accepted already?: Not that I could see
How would this benefit Alora?: It would mainly make Nex a lot more accessible to players who don't have access to the endgame gear commonly used to fight Nex, but it would also make for a more engaging fight as well as a nice change of pace for players who go the melee route looking for maximum DPS.