it is not "make or offer apologies" but "extend", that implies extend to some (other) people

Ref. Harrap's:
apology
[B'pClBdFN] n (a) excuses fpl;
to make/offer an apology faire/présenter des excuses;
to make/send one’s apologies faire/envoyer ses excuses;
I owe you an apology je vous dois des excuses;
by way of an apology (for having …) pour s’excuser/m’excuser/etc (d’avoir …);