I think this is more than trivial. Using tractors which were designed to work on farms on an aircraft carrier is just like using IED in a modern battle field. What does this indicate? Your fleet is not professional. You're unable to design and make your own tug. You don't even have enough $$$ to buy a tug, why bothering operate an aircraft carrier? As I stated before "Aircraft carriers are not for slum dog government".
I guess we could conclude it is rather Podunk, although the USN used tractors in the past so?