Possibly. It could also be evidence that the bombs didn't really do their job. Either they missed or the bunkers were fortified enough and/or deep enough to avoid even the bunker busters.
It's possible (though not guaranteed) that they simply relocated the enriched uranium before the attack.
That one was counterintelligence deliberately placed in OSINT to confuse Iran. The B-2's that flew west over CONUS in daylight, in plain view, were decoys on a wrong timing.
https://www.wsj.com/politics/national-security/the-u-s-strik... ("U.S. Strike on Iran Began With a Ruse")