It would be great to be able to work completely hands free but that's probably wishful thinking.
Uncoupling doesn't seem to be very problematic but coupling is the issue.
The newest Lionel couplers improved the odds dramatically though.
The other component is keeping a car that you're trying to couple to, from simply being pushed away by the impact of the train when coupling. I've thought of applying some layers masking tape to the inside surface of the outer rails to provide some resistance and act as sort of a "brake" for those cars that are spotted at industries.
