It is not a technique I'm aware of. Using a heat gun and scraper would have taken less time. Looking up a YouTube video of "decal removal" would have instructed any newbie on decal removal and application. If the cabinet was damaged before he started, then simply buy a new cabinet. At the end of the day, I wonder if the fanbois supporting this method would buy this machine knowing it's history ?
I don't think so.
I know several respected restorers, and none would use this approach for any reason.