I would also add, that being on the other side of the fence for a while, the OEM took some flack in this accident. However, when you fully understand the design concept of such systems and then listen to the engineers express their surprise at how poor the knowledge and understanding appeared to be, generally, amongst the Pilot community, it can be humbling. To a design engineer, us not understanding why he used thermistors as the backstop warning system, coupled with an apparent failure to follow the FM Procedure when the lights come on is just inexplicable to him.
As a community it is important WE do not seek to blame or achieve the simple satisfaction that comes with abrogated responsibility. In the end, we should always look inward. If it can happen to Dave....it can happen to me. What can I/Should I do about it?
The rest is just hot air and conjecture.