Looks like someone needs to read it again.
http://www.huffingtonpost.com/william-o-beeman/does-iran-have-the-right-_b_4181347.html
"...
it has always been the U.S. position that that article IV of the Nuclear Nonproliferation Treaty does not speak about the right of enrichment at all [and] doesn't speak to enrichment, period. It simply says that you have the right to research and development. And many countries such as Japan and Germany have taken that [uranium enrichment] to be a right. But the United States does not take that position. We take the position that we look at each one of these [cases]. And more to the point,
the UN Security Council has suspended Iran's enrichment until they meet their international obligations. They didn't say they have suspended their right to enrichment, they have suspended their enrichment, so we do not believe there is an inherent right by anyone to enrichment."
Neither the US nor the UNSC agrees with your reading. Those bodies clearly consider the right to enrichment to be contingent. And those also happen to be the bodies which will be doing the bulk of any enforcement of international law which may or may not occur in the foreseeable future. So their opinion is the one that counts.