I still don’t understand how the problem with a crane is different than the problem with a tree... possibly because I haven't climbed for production in 10 years, but still it seems fundamentally the same.
If you're worried about repelling off the end of your rope, tie a stopper or use a rope long enough to reach the ground.
If you're using a crane and the long rope gets in the way, use a rope bag for your tail.
If you don't want a rope long enough to reach the ground, be comfortable with being at the mercy of the operator or being a piñata if the crane breaks down.
If you can't manage to organize your thoughts enough to reliably figure out which connection to make/break, the problem is inside you. Figure it out or accept gravity fixing the problem.