The presumption and examples in the article point to air power. The facts point elsewhere.
It seems to me that based on various predictions in say 2009, the Iranian efforts have already been delayed by several years. The precise delay is unknown. The delay was not accomplished by aircraft delivered bombs, but by severe action on the ground at disbursed locations.
Scientists were exterminated. The centrifuge controls were destroyed. Under ground facilities in at lest two locations were exploded.
These are what is known. We don’t know what else is unknown. What we know is that Iran still doesn’t have a bomb.
Well said.