Wikipedia isn't a reliable source and anybody using it as such needs to slap themselves hard. Anybody can do a change or write an article. Moderation and fact checking are done by other random people and not guaranteed to occur. Nothing to say that they're not all wrong or have some ulterior motive.
This "fact editing error" was likely found and and corrected by one of Wikipedia's paid moderators, and is an indication that Wiki edits are fact-checked and (dis)approved expeditiously.