Public information on Isfahan says the entrances to the underground areas is still caved in from the prior bombings. Unless the Iranians have already dug out the tunnels, the soldiers would have to land in enemy territory with their own heavy equipment. Then attempt to excavate the area while open to counterattack.

If it were so easy that commandos could drop in and dig out the site in a day - seems improbable that the Iranians would not have already done the same. If the Iranians had already excavated the tunnels, it would seem prudent to immediately move the uranium to another location.

Why would that be prudent? Seems to me the underground fortress is working well.