And nothing like that has ever been "established" and all that is, is your personal fanon.
Draal from Babylon 5, said something like "The plastic surgeons are going to make a fortune putting ridges back on everyone's head."
On the other hand actual crispring is going to be heavily outlawed.
Even if the council is in disagreement, there's going to be one house that is nuking planets from orbit at the mist signs of gene mods, whether it legal or a war crime, just because it's the only way to preserve their way of life.