Doesn't matter one single bit, they are still the 100% subsidiary of Alphabet which is legally bound to provide data at the request of US gov agencies.
https://en.wikipedia.org/wiki/Microsoft_Corp._v._United_Stat... (2016) and https://en.wikipedia.org/wiki/CLOUD_Act (2018).
If so, it might end up in court again, and we'll have to see how that precedent gets set out. Will be curious to see how this plays out.
I suspect the issue is rather that Google Ireland are not in fact exclusively housing EU data within Ireland (or the EU in general).