1. Arguably this is the cost of regulations not being followed properly
2. This is an extra-ordinary circumstance that is costing much more than a regular plane would cost to get certified and fly (see point 1)
3. You are drastically underestimating the cost to the industry both in terms of reduced customer confidence, hull losses (~$100mil an airplane), and increased insurance premiums if we were to continue flying the Max 8.
But honestly, I'm having a really hard time understanding what your point is. Are you asserting that we should just fly the Max 8 and not worry about it? Are you asserting that airplanes aren't safer now? What are you getting at?
Pretty much any other form of transit, safety-wise.
https://en.wikipedia.org/wiki/Aviation_safety#United_States
> The number of deaths per passenger-mile on commercial airlines in the United States between 2000 and 2010 was about 0.2 deaths per 10 billion passenger-miles. For driving, the rate was 150 per 10 billion vehicle-miles for 2000 : 750 times higher per mile than for flying in a commercial airplane.
> How does your "better" passenger-deaths-per-km measure account for these deaths?
You propose a silly metric. Car accidents cost $871 billion a year. https://www.pbs.org/newshour/nation/motor-vehicle-crashes-u-...
How does your "better" passenger-deaths-per-km measure account for these deaths? (And what is it superior to, exactly?)