I think the Lowy Inst (which you give a link to, Anonymous) is mistaken here, probably due to an interest in supporting the US for commercial reasons.
My understanding is that the US/NATO alliance is attempting to isolate Iran due to its position on the Caspian Sea (where there are large, if hard to get to, petroleum reserves), its own reserves, and its geopolitical position in relation to pipeline supplies and Russia. Iran and Syria had a good relationship but the US does not want this because, starting with Iraq and Afghanistan, in a replay of the Great Game of the late 19th century, it wants a wasteland that it can simply take over. There is no humanitarian motive; quite the opposite. I personally feel that we can blame, almost entirely, US policy for preventing this region from repairing itself after 20th century colonial rule.
Iran and its neighbours on the Caspian Sea
Have a look at a map of Iran and its neighbours on the Caspian; you will see that the US, with NATO as its lackey, has been trying to alienate and disorganise these countries, including Georgia, Syria, Iraq, Afghanistan and, I think, Turkey.
I think the US partly gets away with this behaviour because people have been brainwashed into thinking that the disorganisation of Arab countries happened all by itself. It did not.
Furthermore, I think that the United States has something similar in mind for Australia. That is my inference because the Australian and State governments are engaged in a wholesale disorganisation of local populations and democracy by constant undemocratic injection of mass immigration, having rendered toothless all institutions capable of safeguarding Australian civil rights to housing, affordable water, food, employment, fair wages etc - all so far without firing a shot.
Budget cuts should demand cuts to population growth