I also meant to ask you, in the same vein, just how MUCH 'detarget your opponent's tab lock' was there in Lineage at the higher levels?
Because at the moment, this is the main thing I can see making this system enjoyable for me rather than just 'something okay that I have to engage with and hope it is balanced better than it looks'.
Light armor had an augment that had a chance to detarget your attacker, so pretty much any class that used light armor could have this as their base. 2/3 rogues had detarget abilities, with all of them having a retarget one. Iirc Archer stun ability had a detarget. Elemental mages had a fucking detargeting aoe ability around their character (small range, so positioning mattered a lot). My favorite super OP mage class had a mid range single target attack with a detargeting chance.
I thiiink that's it. So considering the average party setup, only the fighter classes didn't have shit like that. But they'd quite often wear light armor because it gave them more dmg, so even there they'd have a chance at detargeting. And on top of that, quite often you'd have a dark elf rogue character in your fighter party because he had good debuffs.
In other words you had a shitton and quite often low-mid skill players would get absolutely lost if they lost their target, so the feature itself was really effective.
Edit
: Oh! Also, there was one rogue that was literally all about detargeting. He had a top lvl buff that had a high chance to detarget and he had the light armor, the rogue detargeting and retargeting abilities. These motherfuckers were insanely annoying (they also had a pretty long dash buff, so mobility was through the roof too). They were also fat as fuck so usually you'd try to leave them for the last victim, but them being rogues meant that they could one or two shot your healer, so you had to deal with them in other ways more often than not. They had very mid dmg for a rogue and abilities could miss quite often, so that was the tradeoff.