From the article: "What he noticed was that they now play with physical Legos as if they were the video game, reenacting their races with the plastic pieces. This isn’t to say that Legos aren’t still good toys, or that there’s anything necessarily wrong with imaginary play mimicking the experience of a video game, but it’s certainly different from what most parents imagine they’re buying in a box of Legos. The question is whether that difference matters."

Not only does the difference not matter, I'm not sure I believe that there is a difference. When kids play, they're acting out variations on stories they've encountered. I don't see a real difference between performing scenes from a video game and performing scenes from a book, movie, TV show, or real life.