Thus the Iranians begin their rope-a-dope...of us.
They know they can refine now, and have set up the capacity. Now they'll expand the capacity so they can do more and more.
Stopping now is tactical. None of the European or Asian powers wants a war, so Iran appearing to really be going for nuclear power and not weapons can be used as an excuse, a cover, by governments to be able to say "See, pressure worked!" and back away from supporting any action. Then Iran will get more in place and do it again. Saddam played this rope-a-dope with the world for years, but HE didn't have the centrifuges and the refining capacity and scientists. Iran does.
All the while, the Iranian President telescopes his intentions to the Islamist world and becomes the de facto champion, by bearding the American lion.
Keep an eye on the American carriers. How many are in the Persian Gulf is a good indication of when, or if, the US is planning a military response.