Freepers have been positing this several times a week now. It is not like Trump does not know his own Executive Orders. If this did not prevent the vote fraud, it is not going to undo it at the last minute.
The EO was not designed to prevent fraud, but catch the fraudsters and punish them appropriately. If you read the EO, you will see that it takes some weeks to put the evidence together and take action. Do you have a better method?