This was the most telegraphed attack in history of warfare. Trump was tweeting about it, we were moving troops and planes, even specifics of the attack plan were discussed ahead of time. There are satellite photographs of them lining up trucks. I wouldn't be surprised if they cut up and moved the centrifuges. 1000% they moved the uranium.
That could have been part of the plan, if they thought the site was impenetrable then warning about an attack would encourage Iran to move the material somewhere more accessible to American weapons.
