I agree with you - but I've read in several places that Apple were ordered to apologise. Their feelings (or not) don't come into it.
[BTW - the linked text kind of implies that they do have feelings; the article comes off as surly, resentful and not a little childish...]
[EDIT: Seems like they were never actually ordered to apologise, only to clarify that Samsung did not, in the judgment of the court, infringe on anything.]