Please quote them in the thread and explain what you think is wrong so I know what you are referring to.
I think engaging in eugenics to 'decommission' the clones is wrong.
But no, seriously. Deafness can be worked around. Now, granted, in republic space high level healthcare often deals with any potential issues in utero, not an option now, but there's either going to be a fix which can be applied, or we can make a fix for the clones, and see about adapting it to others and using it to help others too.
Honestly, Kaminoans not using their genetic engineering and medical expertise to help existing people is something I always found weird. So, maybe we work out a gene fix. Maybe we apply tech implants.
Maybe since it can be a hot button topic IRL since deaf people have suffered numerous bouts of attempted eugenics we let them stay deaf, and I dunno, teach all our clones sign language to talk to their siblings, also an advantage in that they can then translate for other deaf humanoids who use a galactic standard of sign language.
Plenty of deaf people learn to manage through things such as lip reading and while many take up offers of implants or whatever there's a significant deaf culture who don't see any need to change since they manage just fine.
Of note in particular is implants are great for infants who can then learn normally. But for older children and adults it can be months or years of learning the sounds. So, even if a 'fix' is found. It may not be right for all the clones.
[X] Keep the defective clones. (-3 SS, Unlocks new Research Project)