The parent said they were accused of cheating at a game because they played it enough to perfect it, which isn't something humans can achieve with chess. Even the best chess engines don't play perfect chess, they just play at such a high level that no human can beat them.
At any rate, a 19 year old ranking a couple hundred points below the world champion for the past decade isn't going to have enough practice to use that as an excuse. So no, it's not the same thing.
