The IAEA toured the facility and Horton is saying they never enriched near enough for a bomb. It was latent deterrent and your famed Intelligence services AGREE
why not listen to them?
Did you actually read that report yourself? Because this is a misrepresentation. What you are (deliberately?) confusing is the difference between saying "they aren't doing it", and "we can't prove that they are,/i> doing it". The reason that distinction is so critical is that Iran has broken its obligations with respect to allowing inspectors access, permitting monitoring equipment, etc..
In other words, Iran is deliberately taking actions specifically intended to prevent verification that they are in compliance. So when you say "they never enriched..." that's the exact kind of statement that cannot be made.
It's no different than barring election observers from a room, then saying there wasn't any cheating because the observers didn't report seeing any. Here is the actual summary from the IAEA report that you just referenced: 30. The Agency’s JCPOA-related verification and monitoring has been seriously affected by the cessation of implementation by Iran of its nuclear-related commitments under the JCPOA. The situation has been exacerbated by Iran’s subsequent decision to have all of the Agency’s JCPOA-related surveillance and monitoring equipment removed.
31. The Agency has lost continuity of knowledge in relation to the production and current inventory of centrifuges, rotors and bellows, heavy water and UOC, which it will not be able to restore as a result of not having been able to perform JCPOA-related verification and monitoring activities for more than four years.
32. Iran’s decision to remove all of the Agency’s equipment previously installed in Iran for JCPOA-related surveillance and monitoring activities has also had detrimental implications for the Agency’s ability to provide assurance of the peaceful nature of Iran’s nuclear programme.
33. It has also been more than four years since Iran stopped provisionally applying its Additional Protocol. Therefore, throughout this period, Iran has not provided updated declarations and the Agency has not been able to conduct complementary access to any sites and other locations in Iran.
34. The significantly increased production and accumulation of highly enriched uranium by Iran, the only non-nuclear-weapon State to produce such nuclear material, is of serious concern.
So sure, the IAEA and intelligence agencies cannot confirm that Iran is building nuclear bombs because Iran is refusing to permit the inspections of the relevant facilities.