Niels Posthumus for Trouw (article in Dutch):
McNally has since designed more than two thousand Irish pubs in over fifty countries, according to his own records. [...] He had all those interiors fully built in Ireland. McNally and Guinness established that this would be a requirement to grant pubs abroad the label of "authentically Irish."
A good bar is a good bar by design, whether that design is "authentic" or not. Theme parks are a great place for this — spaces are designed to be fun and inviting without a pretence of authenticity.