I agree wrapping receptacles in tape is a sign of marginally qualified or unqualified installers. It can end up being a sticky mess with some brands of tape. Other brands of tape get hard and flake off.
The band is an interesting idea but if you are following 70e and not working hot, totally unnecessary with a decent level of workmanship.
As for the tywraps. IBM had an easy answer. The tails sticking out become an eye hazard and we were required to cut them flush. The best answer is a gun that tensions and cuts the tail in one motion but most folks don't have one.
