I read both your reply and the review.
I don't think there is a time limit to mention of event in a review, especially it is only a month ago (not that long ...).
So the event is true, the content is true, the score is reflecting the content of the review. I cannot see "this player hasnt played our server in over and month and should not be allowed to write a review like this" as a valid reason to delete the review.
Anything else?