In this brief speech by Achilles, he seems to be holding Zeus responsible for causing the atai ‘aberrations’ that have led to this point in the epic. See the comment on I.19.086–088. The context here at I.19.268–275 shows that Achilles has in mind not only the atai ‘aberrations’ of Agamemnon but also his own. On the atē ‘aberration’ of Achilles himself, see the comment on I.09.502–512. See also the comment on I.09.115–120: there too we see atai ‘aberrations’ in the plural.