Yup, been there, seen that. I once saw a woman dropping an outlet below a cabinet in a bathroom. They showed her taking the old over-counter outlet out, and the *POOF*, the next second she was installing the outlet below the cabinet. They didn't show a single instant of fishing through, cutting in the box...nothing. Magic!
Oh, and I have a drywall guy that can make anything look beautiful, no matter what kind of damage I have done with my saw. You just gotta find the right people to make you look good :-)
Oh, and the problem with wrapping wire nuts is not the connection it's self, it's having to be the guy who comes in later to try and get into the wire joint, especially if a DIYer was the wrapper. If wire nuts just "fell off" of wire joints, making the tape necessary, I'd switch to crimps. I think a lot of the old timers wrapped wire nuts as a result of having wrapped solder joints for so long and they just didn't trust the "new" tech. A properly installed wire nut should never, ever fall off of a joint, even under reasonable stress. Except for trying to keep moisture out (and there are better methods and materials for this), there is very little call for wrapping a wire nut in tape.