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If morality is the judgment of human behavior according to ANY GIVEN set of standards of Right and Wrong ...
An a-moral set of articles would have said, or implied, that Lueke did nothing "objectively" Wrong -- that he should be excluded from the Mariners organization because of expediency.
An argument that said the Mariners should exclude Lueke, merely because he would hurt their attendance or relationships or prestige or etc., that would have been an amoral argument.
Might have understood Geoff wrong, but he seems to have been making an extremely "moral" argument -- that once a violation of his standards of Right and Wrong have occurred, that no repair (in this violation) is possible.