A practical drawback to premade cables is the need for a larger hole to accommodate the pre-attached connector. There's also a larger gap that needs to be plug

A practical drawback to premade cables is the need for a larger hole to accommodate the pre-attached connector. There's also a larger gap that needs to be plugged around the cable to prevent leaks into he wall. My ordinary home-centre electric drill and an affordable ~7mm masonry bit lets me drill a hole in stucco large enough to accept bare cables with a very narrow gap to worry about.