No, the actual literal meaning is that there is not a single person who had their expectations met. "Everybody" is a singular pronoun. It just looks like a plural one.
Of course, it's incredibly pedantic to point that out, since we all know what Unskilled actually meant (what you say above)... but, technically, he was wrong.
You can't say this game DID meet everybody's expectations and you can't (technically) say that it DIDN'T meet everybody's expectations. You can say, however, that it did not meet all expectations without anyone being able to nitpick at your choice of words. (since "all" is plural)
Yeah, I think I should check into things a bit more before making big posts that are basically wrong. Made an example of how presumption can lead to ****ups myself there.
Welcome to the club!
EDIT: fixed quote.