This is the type of thing that would be used for storage of essential human data rather than for general data backups I think

If a glass platter really holds 360TB and can be made affordable, it wouldn't really matter.

The article says itis designed for cold storage of data, e.g. backups, or perhaps things that get written once and accessed infrequently. 

"Statistics show that between 60 to 80 percent of all data which is currently stored globally is classed as cold data," said Kazansky. "However, because of the way that humanity is developing, because of all of the budgets and AI and so on and so forth, a lot of businesses historically have been like, 'look, we are just going to use hard disk drives or SSDs,' which are expensive, which are bad for the environment because they consume a lot of energy. They're non-recyclable. They fail often, but they're just easier to use. Through inertia, people have been using the incorrect type of tool for a use case that can be used with a different tool."