Pages in different languages have no connection to one another outside the subject being linked. Each language's page is written and moderated by speakers of that language who can choose to write whatever they like.
Wikipedia is apparently banned in China, so on that basis, I'd probably be a bit dubious about content regarding life there where I couldn't verify the sources
The airport is not council funded and is only minority-owned by the council, so we won't find out any commercials that way