You seem overly spiteful. Sorry to disappoint, but Iranian UAVs have showed the capability in practise already multiple times and no-one doubts Iran's prowess in this sector. You can ask your friends in Saudi Arabia to confirm:Hey, its mullah approved so it must be true.
And these UAVs involved in above attack were of lower capability and still flew 100's of KMs undetected to perform these attacks with such level of accuracy.
It's safe to say you have little notion of reality and are instead fuelled by covetous resentment. Grow up.