How does the Atlassian Prioritization process work? It makes no sense to me

[Cash Coyne]

Can anyone give me some insight as to how Atlassian prioritizes the features and functionality it develops?  I know that they use the "voting" to some extent, but I got really confused when I saw this Jira feature released in a recent blog post:

I'm thinking that having "confetti animation" when an issue was done was not something that an overworked Jira user would have requested or upvoted.  And think that the story points used to develop this fun item could have been better used to develop one of the highly voted features that have been sitting in Atlassian's backlog for years.