Why so long? Because the Duffer Brothers understand that this is the real ending . The battle against the Upside Down was the B-plot. The A-plot was always about the end of childhood innocence. The extended runtime of the dance forces the audience to realize that the kids will never go on another D&D campaign without trauma. Mike and El will never have a simple romance. Dustin’s confidence is permanently bruised.
The final 40 minutes of “The Gate” are famously divisive. After the gate is closed and the Mind Flayer is driven from Will, the episode does not end. It keeps going. We get a full, uncut sequence of the Snow Ball dance. This is where the runtime becomes genius. stranger things season 2 episode 9 runtime
Most finales would cut between the three plotlines (Hawkins Lab, the Byers house, and the tunnels) at a rapid clip. “The Gate” does the opposite. It lets scenes breathe until they suffocate. Watch the first act: Mike, Will, and Jonathan in the shed. The runtime lingers on Will’s seizure as the Mind Flayer possesses him. In a shorter episode, the exorcism would happen quickly. Here, we spend ten agonizing minutes watching Will’s body turn into a battlefield. The runtime forces us to sit in the helplessness. Why so long
In a shorter episode, the Snow Ball would be a two-minute coda: a hug, a kiss, credits. Instead, we get nearly 15 minutes of pre-teen social anxiety, slow dancing, and lingering glances. The camera holds on Eleven in her pink dress, unsure how to be a normal girl. It holds on Mike and El’s awkward kiss. It holds on Dustin, rejected by his crush, dancing with Nancy out of pity. The A-plot was always about the end of childhood innocence