This is the flipside of data residency requirements that countries are now starting to require. If the EU wants to keep data in the EU, then great, but when the war comes and energy and infrastructure are hit, people would have wished for backups in North America, Asia, and the middle east.
I don't think this is a flipside, unless you're thinking from the PoV of data itself rather than its owners.
data residency requirements in the EU don't categorically exclude data storage in other countries. The EDPB explicitly recognizes encrypted backups, for example, as valid as long as the keys remain in the EU and there's a secure transfer mechanism (p. 30) exactly for reasons such as disaster recovery.
https://www.edpb.europa.eu/system/files/documents/2021-06/ed...
If you can not restore data from EU based Amazon Datacenters because it’s destroyed … you will definitely have better things to do like packing your go bag or buying the last groceries for a while.
For long-term backups you want offline cold storage in an underground facility in a friendly jurisdiction, not a datacenter.
War did not randomly came. America intentionally caused it.
And has lawless goverment and unaccountable tech industry making it bad place for data.
The EU is big enough to house multiple regions for multiple cloud providers, all in the same jurisdiction (so they can actually be used within data sovereignty requirements). Not true for most of the other places in Asia/UK/South America/etc.