I think a summary. A brief one.
Have not seen anything here that was not addressed by all concerned in the development and certification process.
Best efforts, best practice resulted in uacceptable failure trail, BY DEFINITION. The regulations were too minimal. If "Relaxed" to accomodate continued use, the Regulatory paradigm becomes a laughingstock, instead of just a wink wink....
At the very outset, the sham 'specials' were an obvious permission slip to utilize a technology that cannot be made safe for aircraft in commercial carriage. The recent hasty "Permission" to transport this "cannot be made safe" technology on aircraft only emphasizes the desperation of a failing attempt to salvage it.
I think Lithium Ion power on aircraft is done.