I think they would be up against it to make a practicable "Pod" to eject the passengers of a modern aircraft.
I think the focus on what went wrong is the right way to approach most air crashes, so many earlier crashes were a concatenation of individual failings that are hard to put together that without the focus on "Why" they could easily happen again and again if the real cause is not uncovered.
Post crash investigation is what uncovered the fact that a surprisingly small amount of winter slush on a runway will brake a plane sufficiently to prevent it from taking off. In the link below, the pilot was blamed for this crash for around a decade before it was established and accepted that slush on the runway was the cause. Without that investigation, the official cause would have remained that the pilot did not de ice the wings and the road to a carbon copy crash would have remained.
https://en.wikipedia.org/wiki/Munich_air_disaster