Very compelling points and I agree it is interesting to say the least. Seems like it may be more the administration trying to squeeze it in before 2016 then actually being realistic.
I work with an Iranian who returned from Iran recently and he also remarked about how hopeful and enthusiastic the Iranian citizenry is for an agreement. They see it as a path to a significant increase in standard of living. I don't see the agreement happening nor the hoped for relief with regard to comfort. I don't think the mullahs will be happy with a large and comfortable middle class.