The concept of common carriers in not a wartime concept. Should occupied Ukranians keep providing service to their occupiers on principle?

Aside from the common carrier concept, operating a significant war-supporting facility makes you a significant target. And I don't just mean a target for criticism. Datacenters risk a security threat on a whole new level if taking them out is important to war operations.

Would you criticize a commercial port in the Black Sea if it turned away Russian warships? Harboring Russian warships makes it extremely likely that your port could become the target of missile strikes. If you want to remain an innocent bystander, don't harbor combatants.

This is not a statement in support of any side of any war.