https://amp.rugbypass.com/news/are-ireland-and-leinster-the-biggest-chokers-in-world-rugby/
I'd agree with this assessment , I think in is in Irish psyche . Losing is celebrated here. It's hard to overcome that and turn in it to a winning mentality
There is a different mentality in South Africa and New Zealand
Ireland is a country that celebrates losing. 1 million Irish people came out to celebrate ireland losing in the quarter finals of the soccer world cup
The Irish women's soccer team were celebrated in the same way , coming last in their group