Goddamn, if we’re the ones with the enormous brains, how come that gorilla figured out life so much better?
It reads in exactly the same tone as you'd get for an obit of a small town mayor, CEO, or really any leader.
If you properly look around and sometimes go deeper than pleasant very few people are uncritically good people from various angles.
Need to? Maybe not. But I can imagine the folks who studied these animals feeling a similar sort of attachment and desire to portray positivity in writing a gorilla obituary.