The name Holland has frequently been used informally to refer to the whole of the country of the Netherlands.[3] This casual usage is commonly accepted in other countries, and is even employed by many Dutch themselves
6 million of 18 million of the Netherlands live in Holland. You didn’t quote the rest of it where it said that those in the regions outside Holland found it misrepresentative to use the term Holland for the whole country. Or that in January 2020 the Netherlands officially dropped its support of the word Holland for the whole country which included a logo design which changed Holland to NL.
Saying Holland are playing is like saying Yorkshire beat Switzerland tonight.