"It does not matter a jot what whichever Iranian leader said"

I submit it indeed does matter.

"if that statement was misinterpreted it is encumbent upon the leadership of Iran to clarify what it both said and meant""

Do you know that this was not done, but not as widely reported. How so?

What could be the purpose of some leaders and media repeating "a know falsehood" of this significance for years(Nations involved have translators and do use them on significant matters, like this , and continuing to do so when there is ample evidence (for example, an elementary Google search, and msome media reports) that it was a significant falsehood?

Could the purpose be to contribute to "constructive dipolomatic dialogue", leading to a resolution of some, or all of the issues? Just wondering?