In theory I would have thought it might inspire coaches to teach youngsters the one-hander, but for young kids it is tough because until they mature & develop the necessary arm & shoulder strength, the results will be mediocre. This beng the case most coaches will probably play safe, sticking with the tried & tested double hander, rather than teaching a more difficult shot, which if played well increases a players natural variety & tends to improve all-court play & volleying.
Having said that, so long as the grip is sufficiently strong/extreme (a la Justine), I don't think the shot is as difficult to play as it looks, or as people imagine.
"Justine will not beat Serena or Venus on hard Surfaces. Venus will demolish Venus on Grass so will Serena. Oh don't get me started on Carpet."