Earlier quoted context omitted.
Then people are "increasingly" using it incorrectly. Europe is a continent, the EU is a political alliance. There are too many countries within Europe but not in the EU to use the terms synonymously. For example: Albania, Andorra, Belarus, Bosnia-Herzegovina, Croatia, Iceland, Liechtenstein, Macedonia, Moldova, Monaco, Montenegro, Norway, Russia, San Marino, Serbia, Switzerland, Turkey, Ukraine, Vatican City I think…
> Then people are "increasingly" using it incorrectly. Europe is a continent, the EU is a political alliance. Well, it's exactly the same as with America (the continent) and United States (a country). You can either argue that both calling EU Europe and USA America is wrong and we should stop, or accept that in both cases, people can figure things out from the context.
If somebody said "let's hope this law spreads throughout America", you wouldn't assume they meant just the US, would you?
Calling the United States "America" is often handy, but it's sort of a sloppy language all in all. Personally I rather avoid it if ambiguity is likely.
People are also often referring to the United Kingdom as "England" (disregarding the existence of Scotland and Wales) and while it's probably fine as a mental shortcut, it can make you misunderstood or get on somebody's nerves once in a while. And that's a fact of life, too.
Disclaimer: I'm European / EU citizen / Polish.