I wouldn't say it is wrong...just that the FAQ hasn't been updated to show the 2018 requirements.
Of course, it isn't really out now, so maybe they are working in the background to try to get it to work in an earlier OS X rev and do not really want to commit....but I suspect that would be a fruitless hope for any user.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
