The IRA killed many people including children. Those killings should be condemned and those who thought the IRA were justified in their general campaign should be challenged on this, particularly if they are seeking elected office. Recent statements by Sinn Fein representatives focus on the IRA campaign and not on the cost to people, including child victims.
In 2020 Sinn Fein TD Brian Stanley posted the following tweet concerning the 1920 Kilmichael and 1979 Warrenpoint / Narrow Water ambushes "2 IRA operations that taught d elite of the British army and the establishment the cost of occupying Ireland. Pity they were such slow learners". [from the RTE website] This was ignorant, vainglorious, nasty rhetoric, and he ignored the fact that on the same day as the 1979 Warrenpoint ambush the IRA killed Mountbatten (a retired naval veteran who thought there would be a united Ireland), an 83-year old woman, and two young boys of 14 and 15. He apologized after he was criticized heavily, but he can be asked fairly why killing a bunch of soldiers was worthy of celebrating while at the same time ignoring blowing up children a few miles away.
Sinn Fein TD David Cullinane's recent, ignorant, in-your-face 'Up the 'Ra' shout represented a view that celebrated IRA actions and that glossed over its despicable acts.
Based on the fairly recent words of two senior Sinn Fein politicians, it looks like they are more interested in delivering a blanket approval to IRA actions than in acknowledging the atrocities that were perpetrated (including those against children).
It's hard for everybody to move on when elected representatives come out with such stuff.