I thought you only included the period within the quotation mark if what you are quoting was also the end of a sentence.
e.g.
You, "Hi, what's up?"
Me, "Why did you say 'up?'"
Since the question mark is the end of both sentences (the one I'm saying AND the one I'm quoting) it falls within the quotes.
But if I was going to say, "Why did you say 'what's'?" The punctuation falls outside of the quote, as that is not the end of the sentence that I am quoting.
I am pretty sure that Covarr saying "everyone". is correct since "everyone" was not the end of Bosola's comment.