I tend to agree, and note that any media can fail or be lost at any time. For large amounts of data, hard drives are the only practical media for me, but people should realize they can fail at any time. In additional, I'm a believer in an off site copy as well; I keep a large HDD copy of my home data at the office, and rotate the drive with one kept at home, along with the primary drives with my data. Cloud storage seems too expensive and slow for me, despite the cost of several large HDs. I dislike optical media now, nor leaving things on memory cards which seems inefficient to me, along with longevity questions.
Ask yourself at any time, what do I do if my primary computer died, the house burned down, a pipe bursts, etc. I was burglarized once, and they took my main computer at the time, a laptop. I had a clone of the drive at work, and was back in business a day later after merely buying a new computer, with only minimal loss of a few emails (POP) due to not cloning for a week. I have only had a few HDs fail, but it does happen. There are systems to automatically do backups, which could be great for most people.