Yes, as someone who shipped embedded systems running off of SD cards, it's a real problem. It's not the flash endurance you hit typically, but bugs in the card

Yes, as someone who shipped embedded systems running off of SD cards, it's a real problem. It's not the flash endurance you hit typically, but bugs in the card firmware that cause the FTL to completely lose it's mind. Yes, even with supposedly quality brands. About the only way I found to deal with the problem is to use "industrial" SD cards that are a little slower and pretty expensive, but the firmware takes less liberties in the name of specious benchmarks.