Trivially rare? Two SSD failures in the whole wide world? I don't know why so many people use these boards to troll random strangers. It isn't funny, it's just sad.
I did not say two SSD failures in the whole world. I said
"SSD dies completely, *after warranty period*, but *before I want to replace the Mac*"
And failure in this context is a slippery issue. What matters is that some particular portion of the SSD can still be read; it does not matter if the SSD no longer supports writing at all, or does so but very slowly (the most common "failure" modes).
We have had millions, billions of these sorts of devices in the field (iPhones and other phones, laptops and other computers) with built in flash drives. And yet I'm unaware of any plague of failure of these devices... It's something people rant about all the time, with zero real-world impact.
I've had LOTS of computers in my life.
I've had plenty of hard drives fail (to first approximation, every one of them, though sometimes after more than ten years).
I've had iPhones and one iPad fail (by battery expansion, in every case, and after 8..10 years).
I've had ONE flash drive actually fail; that was in the early days of flash, and a cheap 3rd party brand (my guess is the controller failed, not the actual flash).
I've had some flash drives driven to what's claimed to be near failure (like 90% of block rewrite capacity used up, according to SMART) but that's not a failure as far as we're concerned, and it's for a machine that's ten years old (old Sandy Bridge laptop).