Iran has lied so often and so much to the point of it being a rarity to actually be truthful, can we believe them with this .... and is it worth investing time to actually think about it?

when come to hit you you will believe it

I would pose you the same question.Would you ever expect a liar to believe what Iran has to say?Of course not but if you were an impartial person,you will have noticed that the Iranians claim of capturing USA drones were denied in the begining only to be accepted by authorities in Washington once Iran came out with ample proof.