The Yandex attack in Sasovo: consequences and what's next [Ukrainian]

A little surprised there doesn't seem to be that many high capacity datacenters in old, cold-war bunkers in Russia? Or in old mines?

Like:

https://www.pingdom.com/blog/the-worlds-most-super-designed-... (AFAIK small capacity approx 1 MW installed?)

Or:

https://www.lefdalmine.com/