...they were catastrophic.

What's key to understanding this attack in particular is that Ukraine isn't really hobbling a key Russian asset. They're damaging extremely expensive, entirely irreplaceable strategic systems that are typically used to saber-rattle the last stages of a war. If push comes to shove, Russia has fewer assets to threaten their adversaries with.

If you understand the difference between tactical integrity and strategic integrity, it's pretty easy to gauge the relative impact of this attack.