Why?
Why?
Well the clue is in the title of the thread.
Tourist and others have spent 15 pages explaining why.
It's simply that the timescale involved, versus the lifespan of the industry as we know it means it won't be worth it.
And with the industry for the time being getting safer as well as cheaper, the safety benefit versus cost also means it won't be worth it. As somebody put it nicely a few pages back, "We aren't killing enough people".
Why am I bothered? Well it's not the dent in professional pride. I'm making a reasonable fist so far of keeping last century technology out of the mountains. And it's not fear of my job. See timescale, above.
Really, it's that all the departments of hard sums, and the clever people, and all that money could be better invested where there's a pressing need.
For example, alternative power for when the oil runs out...