I'm pretty sure Akuna's charge was different than the Albatross killers due to the endangered status of the monk seal. Akuna has a history of criminality and what he did was terrible, but I find it disturbing that he was sentenced to 4 years, while people who kill others on the road are often sentenced to far less.  And Akuna didn't even kill the monk seal. I think priorities are are messed up here.