To say that Eliezer is a moral relativist because he realizes that a primality sorter might care about primality rather than morality, is equivalent to calling him a primality relativist because he realizes that a human might care about morality rather than primality.
To say that Eliezer is a moral relativist because he realizes that a primality sorter might care about primality rather than morality, is equivalent to calling him a primality relativist because he realizes that a human might care about morality rather than primality.
This made me laugh, upvoted.