I've had enough SD and micro-SD cards die on phones and cameras to doubt that is the only problem.

People probably see more of a problem on raspberry pis because they write more to the memory than other systems.

Reminds me of years ago, I had to send a load of photos to a client of something I'd travelled 5 hours to photograph.

Didn't even check, just took and sent. Then went back.

Only to find that the SD card in the phone was dying, and every image was corrupted from about 1/3 down...