It happened in the USA, the smart money is on a loon with a gun.

I've another link here on the same one. https://www.irishexaminer.com/news/arid-40996103.html

There was a recent bomb threat against a the Irish Minister for Foreign affairs, when he went North to tey to discuss the protocol so it must be assumed.

Reality is, the protocol has massively hindered the Loyalist drug imports due to all the red tape so they have not been happy for a while.

The British paramilitary groups might since they survived peacetime by staying on as advisors to British pitiful parties like the DUP.

The IRA from the troubles largely splintered and went away. There are still angry old men getting teenagers to throw thier lives away but not enough to be relevant and largely accepted the Good Friday Peace treaty.

The British government signed on behalf pf the loyalists who never wanted peace or irish civil rights so who knows what will happen.

I havent watched it, but there was a pretty big backlash on the Irish subreddits for racism and its portrayal of Irish accents and influenced characters. That would put a lot off before it even gets played.