timelets

Meanwhile, the enrichment site at Fordow, which is buried deep under a mountain, has barely been touched. The enriched uranium at Fordow is believed to be enough to produce several bombs.
...
Israel lacks the deep penetrating bombs, and the heavy bombers to deliver them, that could do more damage to buried sites. The U.S. has both, and Israel would like U.S. help in taking out those nuclear sites.

https://www.wsj.com/opinion/the-fordow-imperative-for-trump-and-israel-nuclear-enrichment-site-iran-7981fbc0

Obviously, Israeli war planners had to know that before the operation; therefore, they had to count on Trump to approve the use of the bunker-busting bombs and B2 bombers. For some reason, he did not provide the approval.