It is "innocent" only if that 5% limit can be validated. This is a fundamentally antagonistic, violent, borderline suicidal, and dishonest regime. Such validation is impossible.
I don't like pinning our future on the impossible.
Reality is they could allow inspectors to come in and discover they did stop at 5% and it would not be enough.
The US wants to dictate Iran’s foreign policy. Nuclear weapons are the big scary flag to wave so that the reality doesn’t need to be laid out — “We want to dictate Iran’s foreign policy. Period. It doesn’t matter if they are not pursuing nuclear weapons. We will claim they are in order to further our dictates.”