It's Mozilla, they likely just don't have the infrastructure/code in place yet. They definitely get my trust for believing they actually will. They have been very good in the past about keeping things open. They make mistakes sometimes, but their goals are all about being open.

thanks for the vote of confidence! yes we will absolutely open this data up, and it's just a matter of collecting enough data to be useful, and then building the UI. we have a goal of achieving this by the end of 2017, so stay tuned!