You could always brute force comparisons between different mods

You should read what’s done in an annual. For GA, aopa had a good article recently talking about doing the right maintenance because doing everything your AP suggests may be more intrusive and less healthy for the plane. It’s not as aggressive you’re claiming.

Also as others note, age matters in determining where the issue came from. Eg this almost certainly isn’t a Boeing issue.

As a new pilot I really recommend watching the show Mayday Aircraft Investigations, it’s very informative. The accidents are for commercial aircraft, but still I think seeing all the details and the root causes and breakdown in process is enlightening even as a private pilot.

There are varying levels of quality of service in different countries due to shipping infrastructure, partnerships, content restrictions, etc, and I’d say that ties into the cost.

The FAA already grounded their fleets.

Watch the documentaries, the former MD board basically took over Boeing, moved leadership out of WA to Chicago, set up separate plants (one in Georgia not sure if there are more) to counter union/worker demands in WA, etc. This has been a long process resulting in the rotting of the company from the inside out. The 787 was the first example of their garbage - - even though I like the plane, it had a lot of issues.

That’s mainly for their blue collar jobs afaik