Honestly I’m more for the “Give us the cut content” movement than the “Justice for Karlach” movement because I think the former will probably fix the latter.
Also change Gale’s condition to requiring high quality magic items, not just any.
Agree. Karlach deserves a major improvement but that's not the only story involved. The fact she's a companion and an OC character put her in the spotlights way more than any other quests.
She's a bit like the spearhead to highlight the scriptwriting shortcomings of the game. And the fact that she's written as an endearing character, that she's played particularly well by her VA, and that a barbarian is always appreciated in a squad, all of this greatly amplifies its impact for many players (including me).
The first "objective feedbacks" freed from the "magic of discovery" about the weakness of act 3 in particular, came through the Justice For Karlach movement, then highlighted by requests for feedback from Larian in stride.
Then everyone agree there is much more to do with barely everything in act 3, and some improvements in act 1&2 like Minthara, Karlach, Astarion, Gortash... to polish this game and wait for Larian to give it the complete and memorable look it's supposed to have.