I said the box will be gone before too long because it's not the actual solution.
The solution is the BMU and changes to the charging cycle. The problem is that people look and see the box around the battery and think that the solution is all about containment when it isn't. I think the 787 battery proposals might even have looked more reliable if the box and vent were left off in the first place. The box is visible and easy to show photos of in the media. Unfortunately it draws attention from all the more important changes made inside the battery and to it's associated systems.