Thesis
the immediate operational value is not a promise of seamless portability, but an organized route for affected customers to place services elsewhere.
Observed facts
Mechanism
Instead of leaving each customer to negotiate a migration from scratch during disruption, Yandex is coordinating destination capacity and assistance with other cloud providers.
Why now
Damage to Yandex data-center infrastructure in Sasovo and Kaluga led to possible service interruptions, making continuity and restoration the immediate concern.
Implications
This response makes cross-provider coordination part of incident recovery, while leaving customers responsible for determining which workloads can move and validating them after migration.
Evidence boundary
The RBC report describes the arrangement and stated intent; it does not establish how many customers migrated, how quickly they did so, whether all workloads are portable, or whether service availability has been fully restored.
Watch conditions
Look for evidence of completed customer migrations and restored availability, rather than treating the announced support arrangement as proof of recovery.