Yes, but that's exactly what you want from a backup. What if that move (or deletion) was accidental? Good backup software will allow you to control the age of various things (e.g. how long do I keep deleted files for, how long do I keep versions for). Apple's Time Machine is the perfect backup system, and it's a no-brainer to use. It keeps as many versions as it can until it runs out of space on the destination volume, and then it starts pruning the oldest versions.
Super Duper I believe allows you to have multiple snapshots of the drive, so each snapshot is essentially a point in time. If you got hit by ransomware, you would roll back to yesterday's snapshot and you're back in business. A combination of Time Machine and Super Duper gives you the granularity (Time Machine backs up every 15 minutes from memory) and the belt and braces (Super Duper allows you to quickly and easily restore the entire drive in case of total catastrophe).
However, don't forget cloud backups. What happens if you're burgled or your house burns down?