The prevailing conditions could and should have been handled by a PPL holder with 20 hours.
With respect, that's absolute nonsense. Those were tricky conditions for even an experienced pilot. So either you are being disingenuous or you're a test pilot and have no empathy for those of less talent or you have no idea what SNN can be like in strong westerlies. The hangars on the NW of the runway are a pain in the bum!
I'm not suggesting this isn't a serious incident, nor am I excusing the crew, but I know what conditions were like on that day. I flew into SNN that day and have landed Boeings at SNN dozens of times in those conditions. It's never easy because of the peculiar winds on short final and around the TDZ. I've seen 20,000 hour Captains relieved to be on the ground safely in those conditions.
Having said all that, I have little faith in the IAA's ability to regulate the Irish Aviation Industry properly.