Why are Rpis still bothering with SD cards? Who did not get their pi card corrupted while used as a server?
"Raspberry Pi 500+ boasts ... an internal M.2 socket pre-fitted with a 256GB Raspberry Pi SSD"
so I'm not sure what your point about SD cards is in this case.
But I'm using CanaKit power supplies (which supply 5.1 volts, Rpis are notoriously flaky if the voltage dips just a little below 5v) and ATP industrial automotive-grade flash cards (not a big premium in absolute terms, I think 32 gig cards are $13 on Digikey).
* Okay okay, before I switched to those accessories I did have problems.
The SD card is a very easy common and well documented way for new users to image the device.