

The drones would not likely need to take out the whole facility. If the drones were particularly targeted, which they almost certainly were, then I can imagine they could take out a particular critical piece of infrastructure that could cause significant disruption.
But yeah, 20% is a lot for sure.

They have to be targeted. They wouldn’t shut the whole facility down if the bomb landed in the remote employee parking lot.
But I don’t see that it’s likely that Iran wouldn’t target their strikes. They clearly have the capability. Hit the targets that maximize disruption.