I was gonna say this, I’ve set up tape archiving system for companies in the past, they’re very cheap, stable, and easy to maintain. They absolutely are the right, modern choice for a lot of long-term data archival use cases.

I’m guessing ‘permanent modern digital record’ means they uploaded it all into the cloud, where they will have to change it regularly due to updates, frequently lose access to it all after a datacentre outage, and soon get price gouged so they’re paying far, far more.