So, low taxes attract jobs after all? And the European Commission admits it?
ReRTFA & its quite clear that the motivation in quote you're referring to ("motivated by employment considerations") is assigned to Irish Tax Officials and not to the European Commission. They're not admitting a thing.
Note: I have no pony in this race & have no opinion on whether tax breaks create jobs or not. But your referenced quote is not the smoking gun you make it out to be.