I'm a little bit concerned about the improvement patches. We should get rid of devastating diseases, but we should also be really careful about how we decide to change the species. We'll be deciding that for future generations.
I think this is only true for genetic modifications to germ cells or embryos, which is why the recent embryonic gene editing story [1] is so controversial.
As far as I know, gene editing in somatic cells only affects the individual and not their offspring, unless that change somehow propagated itself to the genetic material in the gametes.
(Disclaimer: this is in my field of interest but way outside of my field of expertise)
[1] https://www.scientificamerican.com/article/embryo-gene-editi...
Isn't the premise that they can decide for themselves?
Now imagine parents deciding this for their future kids, grandkids, etc.