Saru tells Burnham that Tardigrade DNA cannot be used on a human because eugenics experiments are forbidden. Satmets injected himself and nothing was said about it that I can recall. Now they're using the spore drive every week and even had their doctor create implants for Stamets to assist in regular use. Why is it being allowed? Why no protests? Should they stop doing it? Lorca said "When I accepted the command, I was given the fullest latitude to fight this war how I saw fit." They mentioned starfleet regulation 13982 as justification for Lorca hiring Burnham. Is there likely something similar in place for eugenic experiments?