One of my best friends and I were at Bristol Comic con in the early 2000s, he’s a barman and gave out to the hotel staff for not pouring Guinness properly, went behind the bar and showed them how to do it.
At some point - presumably around then Diageo closed the UK-based brewery that was providing Guinness for mainland Britain, and instead shipped it in from James’ Gate in Dublin. Presumably around the same time they started pushing their quality review programme out to the rest of Europe.
