This is government overreach. These are novelty/fun apps. They are not critical infrastructure or needed in any way. This would be like a court ordering a local bar to serve more than just beer and wine, to accomodate people who like sake and soju. You have free choice to use the social platforms that you want to use. Really don't understand this kind of action tbh.
So your analogy should be more like there’s one big shopping mall network in the city that basically everyone has to go because certain stores are only there — and the owners bought any competitor that seemed to start becoming popular in the past so there’s no perspective of competition either.