IMHO......
....... it was a fundamental mistake to believe that the next generation of avionics could live within an airframe - beautiful though it is - that has so many design shortcomings in this, the age of crashworthiness and 'escapability'.
Retaining the fuel tank under the rear seats was the real killer in this respect. No chance of crashworthy seats when you are sitting on the fuel tank. The door layout imprisons those in the rear seat who also have a tiny window through which to escape if required.
Once again we see short-termism winning the argument, great shame.
G.