The “Vatican” did not cover up anything. The people who either covered up or ignored it were the Irish bishops, 3 of whom have already been removed by the Pope.
The removal of a bishop is a very serious thing and rarely happens in the Church. They are all considered successors to the Apostles, and until the Vatican’s records were destroyed (16th century, IIRC), every bishop could trace his lineage back to one of the Apostles. I have seen somewhat incomplete episcopal “genealogical charts” in Spain, although after Vaatican II, nobody seems to care much.
And in the 21st century, I’d bet that few if any people would know that Catholic bishops are the successors to the Apostles, and that they are all supposed to be able to trace their lineage back to the Apostle from whom they are descended.
St Patrick, the son of a Christian Roman-British authority and a Christian native woman (either in Northern England or what is now Scotland), was made Archbishop of Ireland by the Pope in the 5th century, since the first bishop of a territory is named as its archbishop. St. Patrick is probably weeping right now to see these hideous Irish bishops.
So have they been kicked out of the clergy, or just moved somewhere else? Outside of Irish jurisdiction maybe? Just wondering.