I did exaggerate, however, a wingback needs to be as much wing as back. I don't think RAN or Semedo can really do the wing part. Jonny has shown that's he's able to more than he used to.
It depends on the team and the wider system of play.
I don't see James or Alonso often doing what I'd expect a winger to do. I think got them the biggest difference is the starting position and freedom with which they're allowed to make runs knowing there is the safety of an extra centre half behind.
What allows them to flourish is the positioning/movement of their inside forwards to pull opposition defenders deep or narrow and creating space for them to run into. Combine with the ball players they have in their side who can find them early and it gives them time and space to deliver.
Now granted I don't see any Wolves option likely to start firing over deliveries like James but even if they're getting in behind like that they just have to lash it across goal and see what happens. If you can establish patterns that provide those situations regularly and drum into the front three that they have to hit the box as soon as it goes wide then you'll get chances. It doesn't have to be perfect everytime to cause problems, get defenders running back towards their own goal and you'll get mistakes.
It's need to be a much higher tempo than Wolves currently play at though, opponents get chance to get man back goal side all the time at the moment. When that happens you end up with the ball being casually rolled out to a stationary wingback who's already being closed down by his opponent and expected to turn into Adama and force the issue. The system fails them at least as much as they fail themselves at the moment.