Do you want to be training yourself to only be able to fly FADEC engines? .. or would you like to train yourself proper piloting techniques, so that you aren't reliant on computers correcting your poor flying?
From an airmanship point of view I totally agree with your point!
But I was trying to understand if there was also any technical limitation involved.
From the responses it seems to be allowed with no restrictions, even if it's not advisable in normal ops.. thanks guys!