"Hmm, wonder why it chose Emerald Isle location?"
Because their EMEA DC manager is Irish? Who ensured his previous employers "hosted Irish" too :-)
These things matter if you're not closely supervised. I made unofficial enquiries myself about the validity of the metrics they used to pick new locations, and found that network costs were not included and "tax advantages" were added to Irish locations, despite the company concerned paying the same amount of tax (sod all!) in both Ireland and the UK and with both having current DC's operating.