My point is that there are sanity checks built into the process. It's not difficult. There doesn't need to be a human verifying things there. Is the row count increasing over the previous backup? Check. Is the checksum different? Check. Is it non-zero? Check. And on and on.
Stop making excuses and automate testing your backups.
so, when your check process does not report because it failed to run, how do you know? Do you have a monitor for your monitor? Does that monitor have a monitor?
There is no reason not to automate your backup tests, but there is no reason not to eyeball the check is actually working from time to time.
Stop making excuses and automate testing your backups.