You Are Cordially Invited… is very much a breather episode.
After all, that introductory six-episode arc was exhausting. It was breathtaking in its scope and ambition, a sketch of life during wartime that spanned light-years and divided the cast for half a dozen episodes. It makes sense that You Are Cordially Invited…, the first episode to feature the crew reunited on Deep Space Nine, would attempt to strike a lighter tone. Star Trek: Deep Space Nine might be crafting a long-form war story, but that does not mean that the show is abandoning its warmth and humanity.
Indeed, You Are Cordially Invited… makes a great of sense from a structural perspective. There is an obvious impulse to contrast the show’s darker moments with lighter touches. In the Cards was an endearing comedy about the interconnected lives on the station, airing right before the show scattered those lives in Call to Arms. More than that, Call to Arms featured the wedding of Rom and Leeta as a prelude to the Dominion invasion. Following up the occupation arc with a comedy about the wedding of Worf and Dax adds a sense of symmetry to it all.
You Are Cordially Invited… might not be the strongest comedy episode in the run of Deep Space Nine, suffering a little bit from being overly conventional and entirely predictable, but it does have an infectious sense of enthusiasm that works well in contrast to the high intergalactic stakes of the previous seven episodes.