Basically asking for the ability to turn auto-play off when embedding videos into their wiki product, which seems fair enough because they really hyped their wiki's multimedia power back then.
Ticket opened November 2007, got a bunch of comments and votes, finally fixed in March 2011. Or was it? From August 2011: "This issue shouldn't be closed. I still get this issue in numerous web browsers.", with a follow up in October suggesting it was still broken. No comment from Atlassian, of course.
Whatever else you want to say about Atlassian, their development process is glacial, and their customer communications are very lackluster. It's like a tar pit where good projects go to get preserved in amber.