If it is not literally everyone, it still might be correct in the way that using a word for (one of) its jargon meaning(s) is correct. So, correct in context.
When using words to convey information to an audience to whom you might not be able to clarify, it is useful to use words for the meanings listed in common dictionar(y/ies) (“correctly”) so that the audience can resolve confusions through those dictionaries.
If it is not literally everyone, it still might be correct in the way that using a word for (one of) its jargon meaning(s) is correct. So, correct in context.
When using words to convey information to an audience to whom you might not be able to clarify, it is useful to use words for the meanings listed in common dictionar(y/ies) (“correctly”) so that the audience can resolve confusions through those dictionaries.
I think they were joking about the fact that the meaning of ‘literally’ has changed in the common vernacular to mean ‘figuratively’