The capacity of the stadium was criticised even before its opening for being too small, particularly in light of the large supporter attendance figures for Irish rugby internationals and football internationals at Croke Park since 2007.
Kapaciteten af stadion er blevet kritiseret, selv inden stadion er åbnet for at være for lille, navnlig i lyset af de store tilskuertal for irske rugby landskampe og fodboldlandskampe på Croke Park siden 2007.