This MIT prof goes into why Iran might have survived this bombing. It is very long. He talks slow.

https://youtu.be/dHvOhBKNs-E
Prof. Ted Postol on Why No Bomb on Earth Can Destroy Iran's Nuclear Program!

He compares the size of the canister to his Prius. Yes it could have been hauled out if the hatchback was open.
https://youtu.be/dHvOhBKNs-E?t=1541

A photo of a canister 2 1/2 feet in diameter. IMO the photo was up close and distorted.
https://youtu.be/dHvOhBKNs-E?t=1623

Here he explains how the ventilation tunnels would turn at the bottom, not lead into the production are he labelled "the grand ballroom." Then means would be added to handle the expanding gases. This includes baffles, a large expansion chamber, and a blast door.

He shows the satellites in place over Iran and says that congress should require disclosure of the IR images of the blasts. If most of the  blast blew back out of the entrance hole then that would mean less damage.

https://youtu.be/dHvOhBKNs-E?t=2722
https://youtu.be/dHvOhBKNs-E?t=3045

Avatar
Donald J. Trump
6h
CONGRESSMAN KEVIN KILEY'S, "NO TAX DOLLARS FOR RIOTS" legislation,  should be passed immediately. I am hereby instructing my Administration not to pay ANY money to these radicalized groups, regardless of the legislation. They get paid to incite riots, burn down or destroy a city, then come back to the trough to get money to help rebuild it. NO MORE MONEY!!!