Fascinating! I never knew the WDW Pirates once had a double loading area. I've never picked up that anything was wonky or altered in any way in the loading dock area when I ride the WDW Pirates, but now I want to look more closely.
That double station leading to a single flume setup sounds exactly like the It's A Small World loading area at Disneyland, and it would make sense they would attempt the same setup at WDW as it was built just seven or eight years after Small World opened at Disneyland in 1966.
I wonder why they abandoned the double loading docks so quickly at WDW, but stuck with it for almost 50 years now at Disneyland? Glad to hear Pirates came back up at WDW quickly after the accident today. If it's obviously an issue of a visitor not behaving correctly, it's nice to know Disney can acknowledge that and reopen the ride instead of doing days of "investigation" and red tape.