I can't see a return to non-electronic machines, because electronics increase efficiency no end. But the electronics need to be robust and simple, and well-protected from damage, and the manufacturers have to stop withholding information on how to fix the electronics when it goes wrong.
It's not good enough to be told, "just call one of our technicians", when there's 800-1000kms between your equipment and the technician, and roads are goat tracks.
The Tesla way of fixing problems remotely via satellite or phone link seems to be the way current electronic design is heading. But that idea only ensures more power remains in the manufacturers hands.
The true test of all this stuff is how much is still going to be running in the event of war. An enemy would only have to pop a decent burst of radiation from an EMP weapon, and virtually anything electronic is fried.
Even another major geomagnetic storm presents a possibility of all our electronic wizardry failing miserably. Google "Carrington event", and imagine if that - or a worse GMS event - happened today.
Add into the equation, those basically evil NK's, who are reportedly working on an EMP weapon, and we could end up relying on a lot of antique tractors to produce our food, if the NK's happen to develop and use one.