I never had any use for the Nemedian in Exiled Lands, but I use it regularly on Siptah. The reason for it is – surprise, surprise! – the RNG grind.
In Exiled Lands, you can farm the Unnamed City for legendary armor and weapon repair kits. They are a guaranteed drop from several bosses there, and the only RNG element in play is whether it’ll be an armor or a weapon kit.
On Siptah, they drop only occasionally from some bosses, and the Nemedian is the only reasonable alternative if you happen to like a non-craftable legendary weapon or tool.
Sure, they made it so that certain T4s can craft legendary kits. If they think that’s good enough, then they really, really need to take a month to play the damn game every single day, for at least a couple of hours each day.
I still don’t see why removing the karmic effect is supposed to be good for the game. Nobody has yet offered a decent explanation. The best I’ve seen was a vague, hand-wavy claim (not by Funcom) that we’re supposed to put effort into maintaining the legendary items and that this will make us “participate in the game world” more.
But let’s go with it and suppose that the karmic effect is somehow bad for the game. “It would seem there are better ways to prevent whatever the problem is” would be the understatement of the year on these forums.
They could have made the Nemedian not work on thralls. They could have made it lose durability when used on thralls. They could’ve made it repair only 1 point of durability per damage taken. They could’ve made it amplify the damage received. They could’ve done any combination of the above.
Because removing the karmic effect is much, much cheaper. No new code to write and test, just fiddle with a few data tables (or whatever they’re called in their engine).
Here’s the thing that chafes: adjusting the loot tables (or whatever they’re called in their engine) so that certain Siptah bosses always drop a kit would have been just as cheap. Remove the karmic effect and give us a viable way to farm (not grind, farm) the kits, and we’re good.
But that would require knowing what it’s like to actively play the game.