I dont think there were any over celebrations that I saw. Nothing no other team/fans would do.
I don't think it's a stretch to have called it Leeds Cup final though. Not because of any rivalry with Leicester or because I think we're some absolute giant football club Real Madrid should dream of being one day (even if it's true). I'd call it 'Leeds cup final' for the reasons you posted. It was the difference between 11 points and 17. It was one game you simply HAD to win. Which you did whilst playing quite well.