I am using energia on Linux with several different LaunchPad models. For most of them, Energia forces an update of the FET programmer firmware. If started by the corresponding menu option, the update will take place to some high percentage but then fail, leaving the board in a bricked state. This happens for almost any LaunchPad that needed the update.
I think Energia should be more cautionous, maybe exit the update if something would'nt work out, but don't brick boards in general.