Early US Intel assessment suggests strikes on Iran did not destroy nuclear sites

You don’t need to be a genius to figure out that centrifuges installed 70–80 meters underground will be largely unaffected by bombs which are believed to have an effect down to a depth of 60 meters.

Really? I think calculating the achieved overpressure to whatever structure underground after 6x 30k pound bomb impacts is far into the “genius” category. I’d wager you’d need a team of pretty smart people to even begin to get a wrong model of that.

No genius needed, but all those involved are motivated to lie about it. The bombs have a depth range and 200ft (60m) is the optimistic depth for ideal conditions. These were far from ideal conditions as the location was specifically chosen to resist this. That and ultra high performance concrete is now a thing. This is why the entrance and exists were bombed and those are easy enough to dig back out again. The attack was telegraphed so advanced preparations were made. It is rumored that the entrances and exits were packed with dirt in advance to minimize the damage.

I don't know if it's only effective depth of the ordinance that matters here. Positive interference could be used to amplify the explosive wave of the 6 bombs that were dropped with accurate-enough timing.