I think that's because "most people" who buy a Raspberry PI use it once or twice then it lies in a drawer somewhere. In my experience, if you actively use it for something, you'll get into annoying problems like that, it's just a matter of time and how much you are hitting that SD card, or how many times you unplug it without shutting down the Pi properly.
I've had my Pi 3 running constantly for the last three years as a Plex server. The only thing that has gone wrong is the Western Digital hard disk drive that failed. The Pi itself and even the microSD card have been fine.
