I do find it interesting how much press it gets. Especially since Iran is quite capable of hiding their tracks better.
I think the goal of Iran was to get caught, so that if the election is close, one side will accuse the other of the election being stolen through help of Iran.
It might even be Russia or China framing Iran to be honest.
And I think the US is widely sharing this information to beat the war drums and have cause to attack Iran for election interference.