The problem with asking for input is that people who don’t understand how the game mechanics work still think their input is worthwhile because we live in an age where social media makes people believe their opinion on everything has value regardless of their level of education or knowledge on a subject.
Here is a hint: If your proposed “fix” involves making paper zombie useless while doing nothing to improve zombie’s usefulness at higher gear levels, it’s not a fix. If your proposed fix does not include some mechanic that will help a geared zombie die more often thus feeding Asajj and Daka’s uniques, it is not a good fix.
The decay mechanic mentioned above could work. I’m not sure if they will give us an active ability that lets us decide how best to use her for a particular encounter, but it would preserve the feel of the team while also rewarding the effort to gear zombie. The key thing to remember is that Noghtsisters aren’t OP. They don’t need a nerf. They have plenty of hard counters in PvP but also have some usefulness against particular tough squads that gives them a niche in TW. They are useful in some raids but not all. And to be used at the high end in Sith Raid, they require solid mods and a high level of attention and skill from the player.