Shah of Iran trying to humiliate Trump, ironically he's just made him look good, because this is basic diplomacy which Shah obviously doesn't understand.

Trump tells them, "we spent money on you, make it worthwhile (or it won't happen again)" and they understand that they must do more or the country will not help them in the future.

The Shah of Iran, not being very businesslike and obviously used to having things go his way in his dictatorship like country sees this message through his own filter and assumes it is blackmail when as a matter of fact it is just basic diplomacy and quite a polite piece at that.

There certainly weren't any barely veiled threats from a certain secretary of state in it so I'd say it's a step up from his predecessor.