Yeah, it contradicted my intuition as a developer. If you take down a data center it isn't gone forever. The development team does not live there. Even if it's poorly backed up they're going to rebuild it.
AWS abandoned Bahrain as a region completely after data center strikes. All Infra went to the scrap
I doubt Yandex would ever be able to leave Russia, even if it wanted to.
Given the active sanctions against Russia, as well as high worldwide prices for components like memory and storage, rebuilding these datacenters is going to be an exceptionally slow and costly process. And I can't imagine Yandex is going to be eager to rebuild immediately given the potential for a "double-tap".
Both were struck over half a year ago and me-south-01 (Bahrain) appears to be gone permanently, while the data loss in me-central-01 (UAE) is limited to one of the availability zones.