The first change is a double negative: “either… or” should always be used after a negative clause.
The . is for clarity: I thought the quote got clipped because of the sentence structure, but the source confirmed that was the end of the sentence! Including the punctuation should help that be clear.
I hope these don’t seem too nitpicking…
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is for clarity: I thought the quote got clipped because of the sentence structure, but the source confirmed that was the end of the sentence! Including the punctuation should help that be clear.