This thread has really deteriorated. While at first, there was interest in understanding what had gone wrong with these batteries, it has now completely devolved into kooky conspiracy theory speculations about why everyone associated with the issue from manufacturers, regulators and airlines are corrupt. I can't believe that any of the people advancing such speculations have ever had a responsible position in a government agency or reputable corporation.
While it is certainly possible that corners were cut in initial decisionmaking about the Lithium Ion batteries, it beggars belief that anyone who passed on the design reasonably expected the problems that did develop would develop. Further, once the issue arose, it is even more unlikely that Boeing, et al. would choose any fix (of which the firebox is only one component), or the relevant regulators would approve any fix, other than one that it is convinced will end the problem, not just suppress it. Not to do so with the eyes of the world upon them would be catastrophic to their careers, not to mention Boeing's $66.5b in market capitalization.
Get a life. You've been watching too many TV dramas. Accept the fact that the people dealing with these issues, both at Boeing, GS Yuasa, Thales, the FAA, the JAA, the NTSB and the airlines are probably more knowledgeable and professional about these issues than you give them credit for. Yes, bad things can happen in aviation -- but almost always they are the product of something not reasonably expected -- not something reasonably expected but corruptly suppressed.