The entire Garth Brooks debacle is an example of Irish ‘Wink and a Handshake‘ culture. I have absolutly no doubt that the concert series was ALWAYS for 5 shows, but that the promoter thought they could make more money by promoting only the first three, then adding on the additional two shows, with the full support and agreement of the GAA and Dublin City Council.
The promoter KNEW he could not get 5 nights, but thought that they could ‘work around‘ the issues in back room deals the the GAA and Councils. The issue is that they were NOT required to get a license BEFORE promoting the concerts.
This is the same issue that the building boom had, that collapsed the Irish Economy, get the planning permission AFTER you completed the building. Bass Ackwards!