10 Dumbest Things In Star Trek: Deep Space Nine
2. The Timeframe of What You Leave Behind
An unusual entry now focusing more on the storytelling narrative rather than a place, person or situation.
Both All Good Things... and Endgame deal with time travel and somehow DS9's closing chapter manages something similar, if not immediately obvious.
There are two threads here to consider. One is that Sisko and the Federation/Klingon fleet travel all the way to Cardassia Prime in order to end the war and bring the Dominion to justice. Interwoven with this we have a second storyline wherein Dukat and Kai Winn travel to the Fire Caves beneath Bajor to awaken and release the Pah Wraiths. Ultimately it becomes the setting for the final fisticuffs between Sisko and his Cardassian nemesis.
Let's place this into a bit more context. The journey to Cardassia Prime including a stock-footage space battle and the subsequent drink or lack of in the halls of government take all the first half and trickle into the second hour. Sisko then travels back to DS9 to celebrate the end of the war before he's interrupted and has to travel to Bajor for his last stand.
Consider that while all of that happens Dukat and the Kai take a walk down into the Fire Caves and commune with the resident Pah Wraiths before the arrival of the Emissary. From an episode perspective the two stories weave together and provide balance versus narrative. However in terms of the passage of time it makes absolutely no sense that all of these events take place at the same time.
Sisko manages to travel across a not insignificant amount of space twice and in that whole period the two antagonists on Bajor have managed a few hundred feet underground. They must be slow walkers.