I've just never heard a great argument for this. If you devote any time at all to leisure activities like movies, TV, books, social media, internet - video games are often far more rich and complex than any of those. Books are unique in that they expand your vocabulary, can enrich and help you learn, and use different parts of your brain you don't often use. Movies can have rich stories and cinematography. TV is fairly similar to movies now.
Games are one of the only things in this leisure space that can allow you interact and actually participate instead of sitting passively. In good games you're having to think and problem solve, navigate directions and 3D space, memorize complex patterns. In the best of games you're actually going to experience the sensation of repetition and mastery that you usually can only get from things like sports, learning a musical instrument, etc. Mastering a competitive FPS, a fighting game, a platformer, an action game are rewarding and enriching experiences that really go above and beyond what you can get from movies and TV. To be honest, I literally never watch things on my own now - and really only even watch stuff when my girlfriend wants to.
Games are just more interesting. They're also pretty much the most diverse and international of all the entertainment forms. Most people watching TV in the west will find their local stuff in their country, and maybe US and Canadian stuff as well. Gamers regularly play stuff from all over the world, and it's one of the biggest promoters of international cross-cultural exchange there is.
I couldn't even read this lady's article because of the paywall, but I'd be curious if she even has any points at all.