You should know this because one of the reasons Trump’s been trying to use to justify this war is that Iran never said they wouldn’t pursue nuclear weapons.

You could say the fatwa is just talk but there’s a strategic argument for Iran to not get nuclear weapons besides the moral case. Iran doesn’t want to get nukes and become a pariah state like North Korea and cut itself off from global trade, they’re a Petro state they need trade. At the same time they don’t want Israel and the US to be able to bomb them with impunity. So their best strategy is to remain close to building a bomb, that way they can get sanctions relief while being able to dash for a bomb and nuclear deterrence in the case of a war.