Backup to NAS is a much better solution for a SMB

My experience with tape is very out of date but I doubt much has changed due to the nature of tape

Tape software sucks. Tape restores are cumbersome. A SMB can literally but a multi TB HDD and just drag and drop, and but the drive in a safe.

A SMB will need to hire someone who wants to deal with this niche tape storage, and why would they bother if they can use a NAS for that and a dozen other things at the same time

Tapes can have a shelf life of 30 years. If you need archival storage then tape is a great solution. For everybody else it’s more trouble than it’s worth.