Here are a few more:
Rainiest Winter Olympics
Most technical difficulties at a (indoor) speedskating oval (despite years to prepare and millions of $$$)
Most lip-synching during ceremonial performances
Most banal and irrelevant song lyrics to ever grace a closing ceremony ("He's like...so whatever."; "Hey, hey, you, you, I don't like your girlfriend No way, no way, I think you need a new one." etc., etc.)
Most vulgar subject matter of any closing ceremony (talk of how Canadians "pee in the snow" or have "sex in canoes")