This is a bit of a suspicious summary to me, because it sounds exactly like the summary from the angle of a highly educated, perhaps pol sci grad left-leaning highly critical American.

I'm actually more of a conservative than liberal but I think anyone acquainted with the facts and making a good-faith effort not to see Iranians as Evil Mutants should come to the same conclusions. The US media essentially never mentions these facts and even when they do they treat each as an isolated incident rather than part of a consistent pattern which explains the attitude many Iranians have toward the US. I learned these things from being active in the US antiwar movement for the last 10 years or so.

To give you one example of the lack of simulation here: too long memory. Mossadegh, really? 1953? That is what some guy born in 1970 or 80 will riot about?

First of all they aren't rioting; they're protesting. It would be one thing if the US had acknowledged the wrongness of this action and apologized for it. To the best of my knowledge this has never happened. And don't forget that the Shah was imposed by the US and reigned until 1979! That isn't exactly ancient history. There are many people presently alive who fully remember the Iran-Iraq war and the Shah's dictatorship.

If it turns out today the Russkies did it somehow, how many Americans will get angry? My prediction: not many.

That's very different. The government wasn't replaced when JFK died; his vice president (who largely continued his policies) was made president. Very little changed for most Americans. Furthermore the Soviet Union no longer exists, whereas the US government continues to behave in a very similar, heavy handed way in the Middle East as it did in the 1950s. The difference is instead of dictatorships, the US tends to create anarchy and long-term civil war.