This blog elicited a chuckle. My employer recently mandated JIRA for all teams, even those teams which have been using other agile tools for years. No good explanation was given.
Ditto... it was a way for them to standardize reports from various teams veiled as a cost cutting initiative. Since they are unwilling to pay for anything (read plugins), our JIRA boards are shells of the tools we were using and paying for team by team.