It seems like a reasonable extrapolation.
By your own words you believe the Iranians are only one or two years away from building a bomb. Given the stakes, that's a very narrow margin of error for intel that could easily have underestimated them.
Oh C'mon. There WILL be a seven-hour and 13-minute window of opportunity between the last failure of the diplomatic process when AUP (supreme moral authority that he is) will finally allow the use of force, and the time Iran actually does go nuclear.
If we can't plan and execute a military action to take out their nukes in that time, well, that's our tough luck.