Torturing or killing people in the name of straw man containment doesn't sound as a valid excuse anymore.
> legitimate-looking takeover that they had so successfully executed in Eastern Europe before everyone realized what was happening.
This is plain false. Takeover of Eastern Europe was a result of USSR winning the war that Germany lost. It was arranged so that USSR gets Eastern Europe that it has already took. Everybody realized what was happening.
Don't see how it could happen in Iran, much less how post-communist Iran would be worse these days than jihadist nuclear Iran you now have.