If 8,000 people exist for 200 years in a "bottle" as it were, I dont understand why they had to not exist. The creators could have had them continue and/or spring into another universe or something. The main point is the love relationship between Captain Sisco's second-in-command and the stations "constable." The end result is the worth of 8,000 souls to a couple love relationship. Odo thought it was worth it, but will "she?"