SSDs make no sense for offline archival. They're more expensive than hard drives and will be for the foreseeable future. You don't need the improved random IO performance or power efficiency for a drive that's mostly sitting on a shelf.
If what you have is an SSD, you need to know how applicable it is to unplug/remove it, and hold it offline. What I read is that this is not a good fit for how the data retention of an SSD works, it expects to be plugged in to power more frequently. If the storage is safe for 6 months to a year to 10 years, it would be good to know. I believe it may not be.
I entirely agree that its not the medium of choice yet, if ever. LTO still exists for many people, perhaps 25+ TB hdd will make that moot.
