The Irish Catholic Bishops' Conference, which had opposed the 34th Amendment (legalizing same-sex marriage), and said that passage of the 36th Amendment (lifting the constitutional near-ban on abortion) would be "a shocking step" and "a manifest injustice" (see
The Irish Times), took a neutral position on this amendment, calling the provision repealed "largely obsolete" and noting that similar provisions elsewhere "have been used to justify violence and oppression against minorities," and that promoting freedom of conscience and religion "greatly increases the social fabric of a country." (Again, see
The Irish Times.)
Maybe after voters ripped them a few new ones with the 34th and 36th, they thought not coming out against the 37th would keep some people who wanted to poke them in the eye a third time at home so it would fail.