And you basically outlined it: they are bad quality and we have all these power problems and here's the insane list of workarounds.
Incidentally I ran mine of an Agilent E3614A which was worth 30x the price of the Pi.
The Raspberry Pi is not an embedded platform in the ways that you are using for comparison. The Raspberry Pi is an educational platform.
It's just a (respectable( power supply. I'm assuming OP just wanted to say that power quality was not the issue.
prior Pis didn't log when they had power issues, and current ones do, if they are able to.
on a Pi 2 A (I think) I had to hook up an oscilloscope to catch all the tiny power problems I was having, and only then realized what was happening. I was 100% sure I was delivering enough power. I was not. those symptoms were only visible without the scope as weird errors in the OS and running applications, and corrupted SD cards.