A lot of fantasy/sci fi make this assumption, but it'd creep me out if I could have a conversation with a meal before eating it. But octopi are fine because they don't speak and don't have telepathy (I think).
Ultimately I think it’s okay to eat octopus even though they’re hella smart because I know if a human baby fell in the ocean and a hungry octopus was near it would definitely eat the baby. We just have solid land advantage which makes the stakes skewed