Apart from that one time Universal Studios owned and operated a theme park in Europe.
From: https://www.youtube.com/watch?app=desktop&v=m6B1v7tIxK0
If we're splitting hairs, fine, there hasn't been a park with the full Universal Studios moniker (name) in Europe, but it annoys me slightly that this hasn't been qualified. This is the first theme park that Universal Studios have built / are going to build in Europe, would also be fine. There will have been people who went to the resort when it was Universal, who might be confused. Google "Universal Studios Spain" and up pops PortAventura, "Europe" is dominated with the news of the planned UK development.
I didn't plan on getting into a full blown argument about this, but to say that "there has never been a Universal Studios park in Europe, end of." is a lie. It's also not journalistic to shut down a conversation and not consider nuance, or qualify a statement, that's very much in the realms of opinion led blogging, not accurate reporting.
Journalist or not, theme park geek or not. It may not fit with what you deem to be a Universal Studios park, it might not be up to their usual standard and it wasn't a project that they built themselves, but there was a Universal Studios owned and operated park in Europe.