It has been compared with South Africa, which actually had a "Truth and reconciliation" commission to find out what happened. The approach in Ireland was to simply draw a line under everything instead. Which means that the dismantling of the institutions of injustice that produced the conflict only went so far - reform of RUC into PSNI, but no further into Special Branch or the other security services.
Assuming I understood you correctly, I'd prefer if the "draw a line under everything" approach happened in Poland, wrt. who did or didn't support the socialists during 60s - 80s. It's not even about violence and death, just plain old politics. In the political sphere, for the last 2+ decades everyone has been combing over the archives to find some dirt on everyone else. And the media spammed us with that as well. I wish they'd just forget about that and get on with building the future of the country.
I'm not disputing your main point, but I do have a relevant sidenote:
Like most politically charged post-regime-change trials, the T&RC in South Africa is widely regarded by knowledgeable parties as mostly a sham/show trial. You can read more about this in e.g. R.W. Johnson's books such as [0].
For context, Johnson is a Rhodes Scholar, self-avowed communist, and longtime ANC sympathizer (since long before '91), which IMHO lends his few critical-of-ANC opinions mainstream credibility.
If you disagree with him for some reason, it's easy to find other observers who fit your political taste to corroborate his claims.