Contrary to the article's title, LiFi doesn't _compete_ with the majority of WiFi use cases due to its limited propagation characteristics. The article confirm

Contrary to the article's title, LiFi doesn't _compete_ with the majority of WiFi use cases due to its limited propagation characteristics. The article confirms as much: "“We don’t want to replace Wi-Fi,” he says. “That’s not our goal.” But Deicke says Li-Fi could complement existing communications technologies including WiFi"