This is unclear reporting -- only local rural roads are to reduce to 60km/h, not all 80km/h roads.

A speed limit is as much a signal to people as it is for enforcement and that's before we get to the paradoxical arguments about enforcement from the Cllr:
https://www.breakingnews.ie/ireland/new-speed-limits-may-be-viewed-as-a-revenue-maker-by-drivers-councillor-says-1711236.html?utm_campaign=article&utm_source=twitter