Trading card games are still games, the headline is just trying to make a joke. As for: "who thought this was a good idea?" Seemingly every independent video game store is moving in this direction. And the video game publishers are as well, in their way.
First, recognize that trading card games are gacha games. Second, recognize that microtransactions are taking over the video game industry. And that gacha games are a big part of that. Third, recognize that physical gacha games, like TCGs, are the only way that brick-and-mortar stores can participate in this transition.
In that light, I think this makes sense. All of this is horrible of course, but I'd rather have Gamestop selling cards than Funkopops. At least the cards are games.