Because I believe for home use optical disc in a cartridge is easier.
*I might be wrong, but I remember LTO tape must be stored at certain RH and condition.
And they last for 30 years, maybe
And VHS tapes. Ade the idea of a tape around a spool feeels like it is not as robust as a disc.
Having said that, iffff consumer version of lto tape drives was out there it would be as cool.
But I still feel discs are more safer.
You see, I could salvage archival optical disc if I got flooded or if they went through extreme temperature.