From that wiki page, we have:

> According to Meyers Enzyklopädisches Lexikon, Central Europe is a part of Europe composed of Austria, Belgium, [...] as well as northeastern France.

and:

> Nevertheless, [Benelux countries] are occasionally mentioned in the Central European context due to cultural, historical and linguistic ties.

It's needlessly pedantic to pick on this part of the OPs comment when there are bigger issues evident: it just detracts from your main point.