> When that account went down, all those “other” backups were just dead noise encrypted forever.

How and why? Are you saying you had encrypted backups on other providers, but... Didn't keep the encryption keys to those backups somewhere handy and unencrypted? Why not? Can you even call that “backups”?

BTW, this is the first time in all this saga I've seen you mention other providers. Smells fishy.