Unless you live in a place with inherently unreliable power, or are flashing in the middle of a thunderstorm/tornado/hurricane/typhoon/earthquake/etc, Flashing is relatively safe as long as you follow directions.

And those risk could be completely eliminated with a dual bios setup, where even if there WAS a failure, it could fall back on the other bios and still work flawlessly. or even better, let you flash the currently inactive one, and switches that to primary upon successful flash. I think even flashback lets you recover from a corrupted bios, too?

So yes, it circles around back to them being cheap and having problems with their process, because they are cheap.

If the brain is functioning as expected, a brain transplant is ill-advised as risk to reward doesnt make sense.... But computers

Yeah I see that all the time for firmware updates. They don’t want to have to replace your product if you’re an idiot and unplug it or something.

Nah, it's not that risky if your tooling and process is solid. I have thousands of edge devices out in the field doing firmware updates on carrier boards from a specific manufacturer and have never had one fail or brick in update. Why? Because their tooling is absolutely fantastic and pretty bulletproof.

Even a simple {checksum>transfer>checksum>write>checksum} is pretty safe, UNLESS...you know the carrier you're flashing doesnt have the ability to do so, in which case, you definitely put a warning like this on your product because you know it has a penchant for failure.